Leviticus 22:8

22:8 He must not eat an animal that has died of natural causes or an animal torn by beasts and thus become unclean by it. I am the Lord.

Leviticus 17:15

Regulations for Eating Carcasses

17:15 “‘Any person who eats an animal that has died of natural causes or an animal torn by beasts, whether a native citizen or a foreigner, must wash his clothes, bathe in water, and be unclean until evening; then he becomes clean.