Leviticus 17:15-16 - Regulations For Eating Carcasses
15 And every soul that eateth that which died of itself, or that which was torn with beasts, (whether it is one of your own country, or a stranger) he shall both wash his clothes, and bathe himself in water, and be unclean until the evening; then shall he be clean. 16 But if he doth not wash them, nor bathe his flesh; then he shall bear his iniquity.