Leviticus 22:5-7

⁵or a man that toucheth any crawling thing whereby he becometh unclean, or a man by whom he may become unclean, whatever may be his uncleanness,

⁶— a person that toucheth any such shall be unclean until even, and shall not eat of the holy things; but he shall bathe his flesh with water,

⁷and when the sun goeth down, he shall be clean, and may afterwards eat of the holy things; for it is his food.