הלכה על חולין 256:38

And the law of living flesh that is separated from a swarming creature, a complete limb, the kidney, the liver, and the tongue (Chullin 128b); the law of their blood, their tendons, their claws, their skins and their eggs (Meilah 17a); the law that anyone that is rendered impure by them is forbidden from eating the priestly tithe and consecrated food and entering the Temple until he immerses [in a ritual bath] - and the matter of immersion is like we will explain in its commandment (Sefer HaChinukh 175), with God's help - and that even after his immersion, he is forbidden to eat even the priestly tithe until the sun sets, and afterwards he is pure and eats; and the rest of its details are elucidated in the Order of Tahorot, and mostly in Tractate Kelim and Tahorot (see Mishneh Torah, Laws of Other Sources of Defilement 4).