Testing Eye Discharges and Doubtful Blemishes

How the Rambam codifies the rigorous feeding regimen for eye secretions and rules on the resulting doubts concerning altar fitness and sacrilege.

The Protocol for Eye Secretions

The Gemara in Bekhorot examines how to evaluate constant tears or eye secretions in an animal. To determine whether the condition is a מוּם עוֹבֵר (temporary blemish) or a מוּם קָבוּעַ (permanent blemish), the animal must undergo a three-month feeding regimen of fresh and dry grasses.

The Sages raise several practical dilemmas regarding this diet. Must the animal eat before or after drinking, while tied or untied, alone or accompanied by another animal, and inside the city or out in an open field? Each inquiry tests what constitutes the optimal therapeutic setting for healing, yet the Gemara leaves these questions unresolved with the ruling of תֵּיקוּ (let it stand unresolved).

The Rambam's Strict Testing Regimen

The Rambam rules that to definitively classify eye discharge as a permanent blemish, all optimal conditions must be strictly observed. The animal must eat at least a fig-bulk of grasses before its first daily meal, consume them after drinking, remain untied in the field, and have another animal beside it for company.

If any of these precise conditions is omitted, the test is inconclusive. The animal enters a status of סָפֵק (doubt), and as a result, it may neither be sacrificed on the altar nor cannot be redeemed for slaughter.

אִם נַעֲשָׂה לָהּ כָּל אֵלּוּ וְלֹא נִתְרַפֵּאת הֲרֵי אֵלּוּ קְבוּעִין וַדַּאי. וְאִם חָסֵר אֶחָד מִכָּל אֵלּוּ הֲרֵי זֶה סָפֵק וְאֵינָהּ קְרֵבָה וְלֹא נִפְדֵּית:

If all of this was done for it and it still was not healed, the water is definitely permanent. If one of these factors was lacking, there is a doubt concerning the matter and it should be neither offered nor redeemed. (Mishneh Torah, Things Forbidden on the Altar 2:14)

Resolving the Gemara's Inquiries

The commentators explain how the Rambam settled the Gemara's unanswered questions. The Kessef Mishneh notes that the Gemara phrased the timing of the meal with the introductory clause אִם תִּמְצֵי לוֹמַר (if you say), which the Rambam treats as a definitive halachic resolution establishing that the grasses must be eaten specifically before the first meal. The Kessef Mishneh also explains that the Rambam's manuscript possessed the reverse reading regarding water, requiring the fodder specifically after drinking.

The Lechem Mishneh adds that because the Rambam derived his ruling from this resolving clause, eating at any later meal renders the examination doubtful. If the animal was fed under flawed conditions—such as grazing in a garden adjacent to the town—it remains in doubt whether the blemish is permanent or temporary. Consequently, one who subsequently inflicts another blemish upon it is exempt from receiving lashes because of this unresolved doubt. The Ohr Sameach points out that this implies lashes would otherwise apply if the animal were definitely an unblemished offering or one with an ordinary temporary defect.

Retroactive Permanence and Doubtful Sacrilege

The Gemara further records a dilemma posed by Pineḥas to Shmuel: if the animal undergoes the proper feeding regimen and fails to heal, does the permanent blemish take effect retroactively to when it was first discovered, or only prospectively from when hope of recovery ended? This question directly impacts the laws of מְעִילָה (misuse of consecrated property) if one redeemed the animal during the three-month trial and derived benefit from the redemption money after despairing of a cure. Shmuel was unable to resolve the question.

The Rambam codifies this as an enduring legal doubt. Because it is uncertain whether the blemish applies retroactively, the person who spent the redemption funds is in a state of safek me'ilah and is exempt from bringing a korban me'ilah.

יֵשׁ בַּדָּבָר סָפֵק אִם לְמַפְרֵעַ הִיא בַּעֲלַת מוּם קָבוּעַ מֵעֵת שֶׁבָּאוּ לָהּ הַמּוּמִים אוֹ מֵעֵת שֶׁנִּתְיָאֲשׁוּ מֵרְפוּאָתָהּ.

There is an unresolved doubt whether it is considered as permanently blemished from the time it contracted the condition or from the time they despaired of its recovery. (Mishneh Torah, Things Forbidden on the Altar 2:16)

Presumptions and Practical Outcomes

The Ohr Sameach explains why this case cannot be settled by default presumptions. An animal afflicted with eye discharge cannot rest upon its initial חֲזָקָה (presumption) of soundness, because its eye was already impaired at the outset.

The Tzafnat Pa'neach emphasizes that according to the Rambam, before the blemish is clarified as permanent, no sacrilege can occur; the retroactive doubt determines only whether the prior designation of redemption money takes effect once the defect is proven irreversible. In practice, if an animal's feeding regimen lacked even one prescribed detail, it remains in perpetual limbo: it may not be offered on the altar, nor may it be redeemed, until it sustains an unmistakable permanent blemish elsewhere.

An animal with eye secretions must meet every detail of the three-month feeding protocol to be classified as permanently blemished; any omission leaves it in perpetual doubt, unfit for the altar and forbidden to be redeemed.

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