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Halachot · Bekhorot 36 · בכורות ל״ו

Blemish Testimony and Lay Inspection for Firstborn Animals

Discover how the Gemara and codifiers handle hearsay testimony, priestly credibility, and the inspection of blemishes by non-experts.

Accepting Hearsay for Blemishes and Marriage

A בכור (firstborn male animal) possesses innate sanctity and cannot be eaten unless it develops a permanent blemish naturally. The Gemara asks whether one may rely on עֵד מִפִּי עֵד (hearsay testimony, literally a witness from the mouth of a witness) to establish that a blemish was not intentionally inflicted.

The Gemara concludes that hearsay testimony is valid to permit slaughtering a blemished בכור. Rav Ashi explains that any halachic realm that accepts the testimony of a woman also admits hearsay evidence.

The Rambam rules that a witness testifying from another witness is believed regarding an accidental blemish. Maran codifies this rule verbatim in the Shulchan Arukh, permitting slaughter based on hearsay.

This leniency is directly anchored in matrimonial law, where hearsay evidence is admitted to prevent a woman from becoming an עגונה (anchored wife). Maran permits a woman to remarry based on hearsay testimony of her husband's death. Here the Rema qualifies that a mere unverified rumor circulating in town without a witness is insufficient.

וְהִלְכְתָא: עֵד מִפִּי עֵד כָּשֵׁר לְעֵדוּת בְּכוֹר.

And the halakha is that testimony based on hearsay is valid in the case of a firstborn animal. (Bekhorot 36a:4)

Priestly Credibility and the Mouth That Forbade

The Gemara considers a case where an animal was not previously known to the public as a firstling. A kohen brings the animal before an expert, admitting that it is a בכור but declaring that its blemish occurred naturally. Rabbi Ile'a rules that the priest is deemed credible and the animal may be slaughtered.

The Gemara bases this on the principle of הַפֶּה שֶׁאָסָר הוּא הַפֶּה שֶׁהִתִּיר (the mouth that forbade is the mouth that permitted). Just as a woman who admits she was married and divorced is believed, the priest could have remained silent. Because priestly misconduct is a mere concern rather than a certainty, the argument of why would he lie remains valid.

The Tur codifies that a kohen is believed when the animal was not previously established as a firstling. However, where an animal is already known to be a בכור, kohanim are suspected of causing blemishes. The Rosh notes that halacha follows Rabban Gamliel: the law makes no distinction for Torah scholars, suspecting even prominent sages.

לֹא הָיוּ מוּחְזָקִין בּוֹ שֶׁהוּא בְּכוֹר, וּבָא אֶחָד וְאָמַר שֶׁהוּא בְּכוֹר וּמוּמוֹ עִמּוֹ — נֶאֱמָן.

Where an animal was not established as a firstborn, and one came and said it is a firstborn and its blemish is with it, he is deemed credible. (Bekhorot 36a:5)

Permitting Obvious Blemishes Without an Expert

A consecrated firstborn animal normally requires inspection by a recognized expert to determine if an injury constitutes a disqualifying blemish. The Mishnah rules that obvious defects, such as a severed leg or a blinded eye, do not require an expert. Instead, the animal may be permitted by three synagogue attendees acting together.

The Gemara restricts this leniency in two critical ways. Rava specifies that laymen may rule only on מוּמִין מוּבְהָקִין (obvious, clear-cut blemishes). Furthermore, Rav Yehuda adds that three laymen are authorized to act only where no expert is available.

The Sefer Mitzvot Gadol codifies that an animal bearing an obvious blemish is slaughtered upon the ruling of three ordinary Israelites. This procedure is reserved strictly for localities where a qualified expert has not been appointed. In the presence of a qualified expert, three laymen possess no such authority.

Hearsay testimony is uniquely valid for permitting blemishes and remarriage, while laymen may only authorize slaughter for obvious blemishes when no expert is present.

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