Kiddushin 8a: Defining "Worth" in Pidyon Haben — Markets, Preferences, and Relationships

Rabbi Zweig examines Kiddushin 8a, focusing on the gemara (גמרא)'s discussion of pidyon haben and the concept of *didi shovei* ("it's worth to me"). The gemara addresses whether an object given to a kohen for pidyon haben needs a formal appraisal (*shuma*). Rav Yosef derives from a braisa that shuma is required: if a man says an eagle is worth five sela'im and the kohen accepts it, even though it's not actually worth five, the pidyon is valid. The gemara challenges and clarifies the case, establishing that we're dealing with an object not worth five in the marketplace, yet accepted by the kohen as if it were. The gemara brings two stories involving Rav Kahana and sudras (scarves) to illustrate when such a transaction works. The key phrase is *hani mili b'gavar rabbah*—this works specifically with a "great man." The gemara indicates that the kohen must be someone who would actually pay five sela'im for the item. The Rambam (רמב"ם) codifies this halacha (הלכה) but omits the requirement that the kohen be a gavar rabbah, simply stating that if the object isn't worth five in the market but the kohen accepts it as worth five, the pidyon is valid.