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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 (רש"י)'s multiple categories (chatzer, bayis, lekatzar darko) and the Rambam (רמב"ם)'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.
This shiur on Nedarim 32b explores the fundamental question of what constitutes forbidden benefit (hana'ah) in the laws of vows. The Mishna distinguishes between one who is mudar maachal (forbidden only from food) and one who is mudar hana'ah (forbidden from all benefit), listing which vessels and uses are permitted in each case. The analysis focuses on understanding the parameters of derisa seragel (walking on someone's property). The shiur presents a fundamental machloket Rishonim regarding how to measure the issur of hana'ah. Rashi (רש"י) is understood to present multiple categories: (1) chatzer and bayis - where the mudar's entry deprives the maddir of use or privacy, creating an issur even without benefit to the mudar; (2) lekatzar darko - where the maddir loses nothing but the mudar gains real benefit by taking a shortcut; and (3) according to some Rishonim, even bimosachan (a valley) where there is no real benefit but the mudar is using the property. The Rambam (רמב"ם) appears to have a distinct position, defining derisa seragel as simply standing on land, creating a fourth category.
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Nedarim 32b
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