Leviticus 11:39-40

39An animal that is good for food might die. A man might touch its dead body. If he does, they must keep him separate from the people until the evening.

40If a person eats meat from the body of the dead animal, he must wash his clothes. He will not be clean until the evening. If a person picks up the body of the dead animal, he must wash his clothes. He will not be clean until the evening.