נדרים
137 shiurim · 27 dafim covered
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27 shiurim
When a shevuah is made without uttering Hashem's name, is it a full-fledged oath that creates an obligation, or merely a personal commitment? The shiur analyzes the Ran's position that a shevuah never needs Shem Hashem (not even as a yad), the Raavad's ruling that a shevuah without a shem obligates a korban but not malkus, and the Chasam Sofer's proof from Nedarim 10a regarding kinuyim.
Can a neder be made using slang or a mispronunciation? The Rambam distinguishes two types: nedarim using "asur" work in any language or dialect, but nedarim using "korban" require a proper Hebrew pronunciation—unless that mispronunciation becomes socially accepted within a specific place and time, transforming it into a valid Hebrew variant.
What is the conceptual difference between a shevuah (oath) and a neder (vow)? The shiur develops the thesis that a shevuah with Hashem's name is not a commitment but a declarative statement of truth in God's name, while a shevuah without Hashem's name (like in Parshas Matos) is a promise—a commitment that falls under the halachos of nedarim. This framework explains why the Rambam places certain issurim in Hilchos Nedarim rather than Hilchos Shevuos.
Does a neder or shevua require Hebrew, or can it be said in any language? The shiur analyzes the Rambam's dual position that nedarim with the word "aser" work in any language, but using "korban" without "aser" requires Hebrew—because transferring kedusha requires lashon hakodesh. The Radvaz explains that mispronunciations by klal ha'am become accepted Hebrew.
Why does the Rambam introduce the concept of kinuyim differently in Hilchos Nedarim than in Hilchos Shevuos? The shiur analyzes the Rambam's structure, arguing that kinuyim in nedarim encompasses two separate halachos: substitute words for the chefetz (object) being forbidden work in any language, while substitute words for "korban" itself must point to lashon hakodesh because they create an objective halachic chalos, not merely a personal commitment.
Can you make a neder in French if you're in America? The Mishnah Berurah says no, bringing proof from the Ritva that kinuyim only work where they're understood. The shiur develops a fundamental chakira: some b'chol lashon means the experience itself (like Shema—understand and you're yotzei anywhere); other times b'chol lashon means "pointing" to Hebrew (like nedarim—only valid where that language connects to Lashon HaKodesh).
What is the underlying mechanism of neder—a personal commitment that triggers Torah's isur, or actively creating a chalos on the object itself? The shiur works through multiple Ran texts (Nedarim 2a, Shevuos 20a, Nedarim 14a) that appear contradictory regarding ikar haneder and hatfasa. Rabbi Zweig resolves the Ran by distinguishing two Parshas: asuring on oneself (Parshas Matos) vs. creating an objective chefetz neder with me'ilah (Parshas Ki Seitzei).
What is the fundamental mechanism of a neder? The shiur develops the Rambam's view (built on Rashi) that nedarim are personal commitments the Torah concretizes—like neder hegdish (harei alai)—versus the Ramban's position that neder issur creates a chalos on the object itself. The Ran offers a third approach, and the practical nafka mina touches on who violates which issur.
What exactly are nidrei issur and nidrei hegdish, and what language creates them? The Ran and Rambam offer fundamentally different definitions: the Ran centers on hatfasa language creating kedushas haguf (harei zu), while the Rambam emphasizes personal obligation (harei alai). The Ramban challenges the Rambam's decision to combine both types under one mitzvah in Sefer HaMitzvos.
Does a shevuah require God's name, or just the word "shevuah"? The Gemara's opening mishna on kinuyei shevuos (substitutes for oaths) reveals a fundamental debate between Rambam and Raavad on whether shevuos bitui (promissory oaths) are commitments or declaratory statements, and whether they differ from nedarim (vows).
Why does the Gemara state that neder and shvuah are written together, yet the Mishna teaches kinui neder but not kinui shvuah? The shiur examines how the Rambam understands this Gemara—arguing it cannot refer to shvuah with a shem—and explores why the Ran and Rosh cite different pesukim to prove neder and shvuah are linked.
Why is there a bal yachel violation in nazir when the prohibition is already expressed through specific lavim like bal yoka and bal yishte? The shiur develops the fundamental machlokes between Rashi and other Rishonim: whether nazir involves only a kabbalas kedusha or also contains a neder-like commitment dimension. According to the Rambam's reading, the hekesh to nedarim teaches that nazir itself is a neder—mechallel nidrei issur—creating dual violations.
How many times is a nazir over bal yachel when drinking wine repeatedly—once or every time? The shiur analyzes the Gemara on Nedarim 2a, exploring whether bal yachel is a violation of a commitment (neder dikadedin) or a separate issur on each act, with major implications from the Rambam, Ran, Miri, and Avnei Miluim.
Why does the Mishna in Nedarim organize some topics by "tzolik minei" (flow) and others by "poseach minei" (structured grouping)? The shiur argues this reflects a fundamental debate: should Torah SheBe'al Peh be transmitted through memory associations (Rosh, Tosafos) or logical structure (Rambam)? This disagreement shapes how Rishonim read Gemara and write halacha.
What happens when someone makes a neder (vow) using the language of shevuah (oath), or vice versa? The shiur analyzes the Rambam's understanding that both nedarim and shevuos are fundamentally commitments in Parshas Matos—the key difference being that neder creates an issur cheftza (prohibition on the object) while shevuah creates only an issur gavra (prohibition on the person). This yesod resolves why neder b'lashon shevuah creates only an issur gavra, not a full neder.
Does a shevuah require God's name (shem)? The Ran and Rambam disagree fundamentally on whether shevuah bituy le'habah (future oath) is a commitment (bal yachel d'varo) or a declaratory statement requiring God's name. The shiur explores their positions, resolving apparent contradictions and clarifying when kinuy shevuah (substitute language) works.
Does a shevuah require God's name, or is the word "shevuah" sufficient? The shiur analyzes Rabbeinu Tam's fundamental distinction between mushba mi-pi acher (oath imposed by others) and mushba mi-pi atzmo (self-imposed oath), examining how this framework addresses the Mishna's teaching that kinuy shevuah is like shevuah itself and reconciling conflicting sources about when Hashem's name is required.
What are kinuyim—substitute terms for vows? Are they real dictionary words, or merely technical jargon that triggers the legal mechanics of a neder? Rabbi Zweig unpacks the Ran's framework distinguishing kinuyim as perversions of Hebrew from standard foreign-language equivalents, and traces a fundamental debate between the Rama and the Beis Yosef about whether commitment demands linguistic understanding or simply halachic consequence.
If everyone in your location uses the term "konam" for korban but you don't understand it, is your neder valid? The shiur analyzes whether neder-language is real communication requiring comprehension or technical terminology requiring only awareness of creating a binding result. The Beis Yosef and Rama's dispute turns on whether saying the neder (motzi besefasav) creates the chalos or voices the internal commitment.
What makes kinuyim (substitute words for vows like "konam" instead of "korban") binding — are they foreign mistranslations or rabbinic technical terms? The Ran and Tosafos disagree on whether lashon she'badlu chachamim means the rabbis created synonyms or a functional vow-language, and whether kinuyim work mid'oraisa or only mid'rabanan. This affects why the Mishna starts with kinuyim rather than yadus (hand-gestures).
Is a neder primarily a chalos—a new halakhic status created in an object—or is it a personal commitment? The shiur contrasts the Ran and Ramban's view that nedarim create a chalos isur or transfer property to hekdesh with the Rambam's position that all nedarim, including nidrei hekdesh, are fundamentally personal commitments. Numerous nafka minos emerge, including hatfasa, baal yachel versus baal ta'acher, and the scope of asering property on others.
What distinguishes a neder (vow) from a shevua (oath)? The Gemara states that neder is an issur cheftza (prohibition on the object) while shevua is an issur gavra (prohibition on the person). Building on the Rambam's formulation, the shiur develops that neder requires a commitment expressed through "harei alai" language, while shevua is a statement of truth about one's future actions. This distinction explains the laws of chatfasa (extension of vows) and why certain formulations work for one but not the other.
What is the fundamental difference between neder and shevua, and does shevua require God's name? The Rambam holds that Parshas Matos introduces a unique category of commitment (neder and shevuat bitui without God's name), while shevua with God's name is a statement in the category of Kol HaTorah Kulah. The Raavad disagrees, holding there is overlap between the two categories and that shevuat bitui creates an obligation even without a Name.
Why does a neder require specific language? The shiur explores whether nazir is an issur chefetz or issur gavra, examining the Rosh's position. A new framework is proposed: issur chefetz means the Torah protects the object, issur gavra means protecting the person. This redefines the machlokes Ran-Ramban on whether improper neder language (konam sh'lo yaachol) constitutes a valid yad.
How can one violate bal ta'achar (delaying a vow) in nazirus when saying "harei'ni nazir" makes you a nazir immediately? The shiur develops a fundamental distinction between two types of neder-commitments: the Rambam's approach that a neder is a commitment to act (harei alai), requiring subsequent behavior to activate kedusha, versus the Ran and Ra'avad who require an actual chalos (kedusha taking effect) at some point to validate the neder.
What is the fundamental nature of nedarim—creating an isur in the object itself, or binding oneself to keep one's word? The shiur contrasts two competing frameworks: the Ran's position that neder creates objective kedusha in the chefetz (requiring hatfasa), versus the Rambam and Rashi's approach that neder is fundamentally about keeping one's word (akin to shevu'ot but attached to an object). The implications extend to every aspect of hilchos nedarim.
What constitutes the essential formulation (ikar) of a neder? The Ran in Nedarim holds "davar zeh asur alai" is sufficient, while the Ran in Shavuos maintains you must say "kikorban." The shiur explores whether this reflects a disagreement about linguistic form or reveals two fundamentally different understandings of how nedarim work—creating an isur on an object versus transferring kedusha from a korban.
7 shiurim
Why does the Gemara's opening question assume the Mishna should start with kinuyim? The shiur develops the fundamental tension: when Torah SheBaal Peh is written down, should it be organized for memory (man desolik minei) or clarity (man depasach minei)? The Iboi Simar resolves the apparent contradiction by distinguishing between lists (where both are valid) and concepts (where clarity demands explanation of the harder topic first).
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8 shiurim
When does bal tachel apply to nazirus? The Gemara on Nedarim 3b analyzes whether saying "kshertze" creates immediate nazirus obligations or merely a conditional commitment. Rashi and the Ran offer fundamentally different readings of the Gemara's answer, with major implications for when bal tachel begins.
8 shiurim
What drives the prohibition of bal tacher (do not delay)—the vow itself or the monetary obligation? The shiur distinguishes between two types of bal tacher: the monetary obligation in korbanos (operative after three festivals) and the personal neder obligation in nazirus (operative immediately). This framework resolves contradictions in the Rambam and explains why bal ye'achel and bal tacher apply differently across contexts.
12 shiurim
Why can't we learn new punishments through logical derivation (ein onshin min hadin)? The shiur develops a fundamental distinction: when Torah explicitly charges us to use logic (gezeirah shavah), even fallible reasoning is valid. But when using binyan av to create an entirely new halachic entity that carries punishment, logic alone is insufficient—that limitation is what ein onshin min hadin restricts.
2 shiurim
Is a yad in nedarim a language that *creates* an issur, or is *describing* an issur sufficient? The Gemara shifts through four readings of Shmuel's position on "merchokani mimcha"—moving from treating it as "not even a yad" to a yad mochachas that asers on both, then to limited issur hano'ah, and finally to a yad she'einah mochachas (ambiguous between talking or eating). Rabbi Zweig develops the principle that the Gemara's evolving readings turn on whether neder requires explicit language of prohibition or whether accurately depicting a state of issur is enough—a fundamental reframing of yad.
4 shiurim
When ambiguous language is used in halachic speech-acts, how much clarity is required? The Rambam's rulings reveal three distinct standards: by gittin 50/50 suffices mid'Oraysa, by kiddushin 51% is needed, and by nezirus even 40% works. The shiur explores why each domain demands a different threshold and whether the issue is the words themselves or the intention behind them.
2 shiurim
Why does yad (an incomplete verbal formulation) work for nedarim but not for kiddushin, even though both involve verbal declarations? The shiur develops a fundamental distinction: nedarim require only a personal statement — clarity to the speaker himself — while kiddushin require bilateral communication and agreement. The analysis explores whether a ma'aseh (action) changes this calculus and what gittin teach about unilateral vs. mutual obligations.
10 shiurim
When someone designates one field row as peah and then adds "and this one," does the second designation work despite incomplete language? The Gemara explores whether yad (implied meaning) applies to peah. The Ran's innovative approach distinguishes between completing an incomplete first statement versus creating a second independent obligation—a fundamental distinction in how yad operates across different areas of halacha.
9 shiurim
When someone mentions Hashem's name in vain, what is the din of nidui—is it a punishment for the speaker, or a requirement for the listener to protest? The shiur develops the fundamental machloket between the Ran (who views nidui as an onesh on the maskir) and the Rambam (who reads the Gemara as imposing a chiyuv on the listener to distance himself from blasphemy, making it a "hostile environment" rather than allowing silent acquiescence).
4 shiurim
Can someone make a shevuah or neder to fulfill a mitzvah they're already commanded to do? The Ran distinguishes between the two sugyos—the first addressing lechaim lehaitiv (optional actions), the second addressing ein shevuah chal al shevuah (one oath on another). The shiur also explores the Rosh's novel approach that a neder can be giving one's word as a chefetz, not merely personal commitment.
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2 shiurim
When someone says "kinidrei reshaim harei ni," does the language itself create a binding vow, or must we know his intent? The shiur develops a fundamental distinction: ordinary yad requires knowing what the person meant (gomar belibo), but kinidrei reshaim is a lashon issur that creates obligation through the words themselves—even if the speaker claims he didn't intend nazirus. The analysis resolves the Ran's question and explains why the Gemara requires both "harei ni" and "kinidrei reshaim."
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3 shiurim
What constitutes forbidden benefit (hana'ah) in nedarim? The shiur analyzes whether the issur is measured by the maddir's deprivation or the mudar's benefit, exploring Rashi's multiple categories (chatzer, bayis, lekatzar darko) and the Rambam's position on derisa serag. The analysis addresses the Tur Evan's question about shade and reconciles Rav Papa's extension beyond the Mishna's parameters.
2 shiurim
If konam-language creates hekdesh kedusha, what happens to the underlying issur neder when that kedusha is removed through pidyon or me'ilah? The shiur works through the Ran's radical position that lo ya'achel d'varo is inseparable from the kedusha—when the hekdesh status goes off, the neder issur disappears too—which conflicts with the Rambam and Mishneh Melech's understanding of nedarim as a separate parshah.
5 shiurim
Why is there meilah by konamot when the issur hanah comes from neder, not hekdesh? The shiur builds a fundamental yesod from the Rambam: meilah b'konamot applies only when removing title from hekdesh (kishyotzi), not from mere hanah. When the nosen is permitted, the mekabel can acquire the monetary value without taking title, so devarim shebalev einam devarim doesn't undo the kinyan—resolving an apparent contradiction in the Rambam.
3 shiurim
Why is one permitted to be shekalim o shekalim (fulfill a public obligation on behalf of someone from whom one is forbidden to benefit by vow)? The Ran holds it's a case of ma'avir achari dikdushah (transferring something sacred), while the Rosh holds it's mutar because mitzvah kavod (mitzvah performance overrides the prohibition). The shiur explores how this machlokes impacts the parallel case of hasheves aveidah (returning lost objects).
3 shiurim
Why should there be me'ilah—misappropriation of consecrated property—when someone makes a neder using the language of korban? The shiur develops two fundamental approaches: either the neder creates actual kedusha on the object through tafasta (linkage to korban), or it represents a reversion of ownership back to Hashem rather than a transfer to hekdesh. Each approach yields different practical implications for pidyon, keren v'chomesh, and whether the object becomes chullin after me'ilah.
4 shiurim
When a kohen performs Temple service, is he acting as an agent of Heaven (shlucha d'Rachmana) or as the owner's agent (shlucha d'didan)? The Gemara explores this through the lens of nedarim—may a kohen who has vowed not to benefit the owner still perform his service? The Ran and Tosafot disagree on whether partial agency for the owner creates a prohibition.
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13 shiurim — daf not yet assigned
Is nezirus an isur chefetz (prohibition on the object) or an isur gavra (obligation on the person)? The shiur analyzes why the Gemara places nazir after shevuah in the Mishna, suggesting nezirus requires a commitment to observe its laws—a language of gavra—even though the Torah creates an isur chefetz. This explains why Hashem yislach lah applies specifically to nazir rather than ordinary nedarim.
How does bal yachel (the prohibition against nullifying one's vow) apply to a nazir who violates nazirus laws? The shiur develops a fundamental yesod distinguishing the Ran's approach from the Rambam's: nazirus contains two distinct components—a chalos kedusha (sanctified status) and a neder b'kum vaseh (positive vow to observe nazirus laws). The bal yachel violation stems not from violating the nazir status itself, but from failing to fulfill the neder to be noheg (observe) the dinim of nazirus.
When does the prohibition of bal tachar (delaying fulfillment of vows) take effect—immediately or after three festivals? The shiur analyzes major disputes among Rishonim on bal tachar by nazirus, korbanos, and giluach. A key focus is the Rambam's omission of bal tachar by taglachas, possibly because if giluach cannot be done late, there's no bal tachar—only bal yachel.
Why does the Rambam say a katan cannot annul his wife's vows because he cannot be married, when he should simply lack the mental capacity (das) like a shoteh? The shiur develops a yesod that hafara is itself a form of neder-creation, not mere cancellation. A katan who reaches 12 has das to create nedarim (Perek 11), and therefore might have das for hafara—except he cannot marry.
When someone says "mudraim choshen" (I am separated from you), does he create an issur hana'ah, an issur dibur, or nothing at all? The shiur explores whether a yad (incomplete expression) creates an actual issur in the object, or merely describes a desired legal consequence. The Rosh's difficulty—that it should be muttar to speak if only hana'ah is forbidden—drives a fundamental re-examination of what yad accomplishes.
Does a hochacha (contextual proof of intent) suffice for vows and divorce, or must critical language be explicitly stated? The shiur explores the fundamental dispute between Rav Yehuda and the Rabbanan over whether yedayim she'ein mochichas (non-explicit indicators) create valid halachic chalos, distinguishing between core chalos requirements and side issues across Nedarim, Gittin, and Kiddushin.
What makes incomplete language effective for vows—clarity alone, or an extended lashon? The shiur analyzes Ran, Rosh, and Tosafos on Nedarim 6a, developing a fundamental chiluk: yad creates chalus (the halachic status change) but may not create the neder aspect (bal yachel obligation). This distinction resolves why we need a limud from hekdesh and why malkus by yad is not automatic.
Can a man marry two women with one pruta using generic language? The Rambam in Hilchos Ishus distinguishes between "harei at mekudeshet li" (generic "you") and "harei Sarah mekudeshet li" (specific name). Only generic language allows "ve'at nami" to work, teaching that kiddushin requires proper linguistic formulation—not just intent or mutual understanding.
Can a talmid chacham release himself from self-imposed nidui? The Rashba distinguishes between nidui as Torah-imposed punishment (irrevocable) and self-imposed teshuvah discipline (revocable). The shiur then analyzes the Gemara's allowance to swear to observe mitzvos despite mushba v'omed meHar Sinai, exploring the Ran's position that such oaths create zrizus and the profound hashivus of performing mitzvos with alacrity rather than resistance.
Can you make a valid shvua to fulfill a mitzvah you're already obligated to do? The shiur develops the Ran's approach that such a shvua creates a din of "bi'yachol divaro"—an obligation to keep one's word—distinct from the shvua itself. The Rambam's position introduces a third category: the shvua creates zrizus (enthusiastic commitment), and failure to fulfill it constitutes a shvua shav, not shvua sheker.
Why does the Mishna say "kinidrei sheirim lo yomar klum" when the Rambam holds that righteous people do make vows to improve their character? The shiur develops the yesod that "kinidrei sheirim" is a kinui (substitute language for issur), not a yad (pointing device), and cannot function as valid kinui because tzaddikim rarely make such vows—unlike "kinidrei reshaim" where the language itself creates issur.
Why does the Mishna distinguish between utensils for food preparation (napah v'kever) and other vessels (sak)? The shiur develops two distinct principles of hana'ah in nedarim: hana'ah from the object itself (requiring any benefit) versus hana'ah from the person (requiring food-related benefit). The Rambam and Shulchan Aruch disagree on when hana'ah is considered "from the person."
If someone pays off another's debt without being asked, can he collect from the debtor? The Gemara distinguishes mavri achari (removing a lion) from actual payment. Where you merely persuade the creditor not to collect—without truly paying the debtor's obligation—there's no hanah given and no legal obligation created, even though the debtor benefits enormously.
Why is it permitted for the mudar to pay the mudur's debt, and how does this not constitute giving benefit? The shiur analyzes the machlokes between Chanan and the Chachamim over whether paying a debt is mavri achari (giving to the creditor) or giving directly to the debtor, and explores Rashi's position that the mudur owes the mudar the money back—raising the question of why this doesn't itself constitute forbidden hana'ah.
When a person is magdish something, does he transfer ownership to hekdesh or impose a prohibitive status? The shiur explores the fundamental machloket between the Ran and the Rosh on the nature of nedarim and hekdesh: the Ran views it as a transfer of monetary ownership (magbiah le'chaveiro), while the Rosh holds it creates an issur on the object through speech. The analysis examines how each position resolves when hekdesh is chal and who violates the neder.
How does declaring an object hekdesh work when it's not yet in your possession? The Ran requires kinyan dalet amos plus kedushas peh, creating a dual mechanism where you acquire ownership to transfer it while sanctifying it. The Rosh disagrees, holding that hekdesh creates an issur directly without requiring prior kinyan, making the ownership follow the sanctification rather than the reverse.
When a kohen performs the Temple service, is he acting as the Israelite's agent (shlichus didon) or Heaven's agent (shlichus d'shmaya)? Rabbi Zweig develops a two-tier framework: the avoda itself (the ritual acts) comes from Heaven's appointment, while kapara (atonement) is achieved for the Israelite. This distinction reconciles contradictory Gemaras and explains why the mudur hano (one who is forbidden to derive benefit) remains forbidden even when his korban is brought by others.
