Bekhorot 38 – בכורות ל״ח | Daf Yomi with Rashi, Tosafot, the Rambam and halacha

What Bekhorot 38 teaches

In ocular blemishes, a white cataract is disqualifying only when floating, whereas a black cataract disqualifies only when sunken.
A tevallul blemish occurs only when white extends into the black pupil, because white tissue is considered mere eye fat.
Chronic weeping eyes are deemed permanent only after failing to heal from three months of moist followed by dry fodder.

The sugyot

The Gemara resolves that Beit Shammai measured a drill with its clearance, proving that bitter vetch measures entering and exiting loosely.
The Gemara reinterprets Chizkiya's testimony regarding earthenware to rinsable vessels defiled by rabbinic liquids, limiting the division of exterior and interior to utensils possessing receptacles.
The Gemara proves that Beit Hillel's coin measure is smaller than Beit Shammai's drill, ensuring Beit Shammai remains stringent without contradicting tractate Eduyyot.
The Mishnah defines eye blemishes disqualifying a firstborn animal, distinguishing structural eyelid flaws from internal corneal disorders like תבלול.
The Gemara resolves contradictory baraitot by establishing that a white cataract is a blemish when floating, whereas a black cataract is a blemish when sunken.
The Gemara identifies the snail blemish with the snake, permitting a scholar to teach students to inspect his firstborn if previously taught.
The Gemara identifies our Mishnah with Rabbi Yosei, ruling that a blemish applies only when white encroaches into the black of the eye.
The Mishnah establishes criteria for permanent ocular blemishes: white spots require eighty days with three inspections, while weeping eyes require failing a dietary cure.
The Gemara clarifies the protocol for testing corneal discharge in a בכור (firstborn animal) through seasonal feedings of fresh and dry fodder.

Halachot from the daf

Earthenware vessels lacking an interior exposed to impure liquids
Flat immersion-vessels fit for midras defiled by liquids
Inside and outside distinction for vessels defiled by liquids
The rabbinic decree that liquids impart impurity to vessels
Whether removing a vertebra or rib renders an animal a treifah
Eyelid blemishes: perforation, notch, or split
Eye blemishes: cataracts, tevallul, and ocular growths
Identifying which cataract formations constitute a disqualifying blemish
Counting a teacher and student together in monetary and ritual rulings
Accepting a scholar's halachic ruling on a matter affecting himself
Definition of the biblical blemish of תבלול in the eye
Establishing constant eye impairment through an eighty-day examination
Disqualification of an offering due to constant eye discharge
Testing whether ocular discharge is a permanent blemish
Required quantity and meal timing for testing permanent eye discharge

Gems from the Daf

Learn Bekhorot 38 sugya by sugya on Super Daf: the Gemara in Hebrew and English with Rashi, Tosafot, the Rishonim, the Rambam and the Shulchan Arukh woven in. Free.