Leviticus 11:38-40

³⁸But if any water shall be put upon the seed, and any part of their carcass shall fall on it, it shall be unclean to you.

³⁹And if any beast, of which ye may eat, shall die; he that toucheth its carcass shall be unclean until the evening.

⁴⁰And he that eateth of its carcass shall wash his clothes, and be unclean until the evening; he also that beareth its carcass shall wash his clothes and be unclean until the evening.