לֹ֥א תֹאכַ֖ל כָּל־תּוֹעֵבָֽה׃
Ты не должен есть ничего отвратительного.
Mishnah Chullin
The characteristics of cattle and of wild animals are stated in the Torah. The characteristics of birds are not stated, but the sages said: every bird that seizes its prey is unclean. Every bird that has an extra toe, or a crop and a gizzard that can be peeled, is clean. Rabbi Elazar bar Zadok says: every bird that parts its toes is unclean.
Mishnah Meilah
Orlah and kilayim of the vineyard can combine with one another. Rabbi Shimon says: they do not combine. Cloth, sack-cloth, sack-cloth and leather, leather and matting combine with one another. Rabbi Shimon: What is the reason? Because these are all susceptible to the uncleanness caused by sitting.