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Tosafot · Bekhorot 48 · בכורות מ״ח
Inheritance, Divine Debts, and Voluntary Priestly Gifts
Tosafot clarifies retroactive clarification, defines loans created by the Torah, and explains why payments made under doubt cannot be reclaimed.
Divided Inheritance and Doubtful Clarification
A father died leaving an unpaid obligation of five sela coins for פדיון הבן (redemption of the firstborn). His entire estate consisted of only five sela coins, which his sons subsequently divided. Rav Asi rules that brothers who divide an inherited estate are viewed as half heirs and half purchasers.
Rashi explains that Rav Asi remains in doubt whether ברירה (retroactive clarification) applies. If ברירה operates, each brother retroactively received the exact portion designated for him from Heaven, making them full heirs. Because the legal standing remains unresolved, they are treated as half heirs and half purchasers.
Rabbi Meir and Explicit Conditions
The Gemara establishes that both Rabbi Meir and Rabbi Yehuda accept Rav Asi's doubt. In his opening comment, Tosafot is troubled by this premise. Across 여러 tractates, Rabbi Meir explicitly rules that ברירה does not exist. How then could Rabbi Meir treat ברירה as an unresolved doubt in our case?
Tosafot resolves this by distinguishing between different types of legal acts. Retroactive clarification is effective according to Rabbi Meir specifically where one explicitly stipulates a condition in advance, such as separating tithes conditionally or issuing a conditional get (bill of divorce). When brothers divide an estate without an explicit prior condition, Rabbi Meir does not apply retroactive clarification.
ויש לחלק דיש ברירה היכא דמתני בפירוש כגון שני לוגין שאני עתיד להפרישAnd one can distinguish: there is retroactive clarification where one explicitly makes a condition, such as 'the two login that I intend to separate.' (Tosafot on Bekhorot 48a:8:1)
Obligations Created by Torah Decree
The Gemara states that everyone agrees that a מלוה הכתובה בתורה (a loan written in the Torah) is treated like an oral loan. Tosafot asks why an ordinary verbal loan between two people is excluded from this category. After all, the Torah explicitly mentions ordinary loans and pledges in Deuteronomy.
Tosafot answers that this status is reserved exclusively for debts that exist solely through Torah decree. Obligations like פדיון הבן, ערכין (valuations), and tort damages have no legal reality without biblical command. An ordinary loan is a natural monetary liability that would bind a borrower regardless, so Scripture merely mentions a self-evident debt.
היינו דוקא כגון פדיון הבן וערכין ונזקין וכיוצא בהן שלא נתחייבו אם לא שחייבתו תורהThis refers specifically to cases such as redemption of the firstborn son, valuations, damages, and the like, for which they would not be obligated were it not that the Torah obligated them. (Tosafot on Bekhorot 48a:8:4)
Payments Rendered Under Doubt
The Mishnah addresses two male newborns whose identities were intermingled, where one child died within thirty days. The father is liable for only one redemption. If he gave five sela coins to each of two priests, he cannot reclaim payment from either one. Each priest can counter that he received payment for the living infant.
Tosafot raises a fundamental challenge: had the father withheld the coins, he would be exempt due to ספק (doubt). Why then does bet din not reclaim the funds, just as they do when a priest improperly seizes doubtful gifts?
Tosafot answers that because the father initially gave the money willingly as a priestly gift, we do not extract it from the recipient out of doubt. Even though subsequent events reveal that payment could have been withheld, a voluntary transfer cannot be undone through uncertainty.
Torah obligations depend on their statutory origin, conditional intent governs retroactive division, and voluntary gifts paid under doubt remain with the recipient.