כָּל־נְבֵלָה֙ וּטְרֵפָ֔ה מִן־הָע֖וֹף וּמִן־הַבְּהֵמָ֑ה לֹ֥א יֹאכְל֖וּ הַכֹּהֲנִֽים׃ (פ)
Священники не должны есть ничего, что умирает само по себе или рвется, будь то птица или зверь.
Mishnah Shabbat
And these are of halakhot which they stated in the upper chamber of Hananiah ben Hezekiah ben Gurion, when they went up to visit him. They took a count, and Bet Shammai outnumbered Beth Hillel and on that day they enacted eighteen measures.