Leviticus 11:24-28

24And for these ye shall be unclean: whoever toucheth the carcase of them shall be unclean until the evening. 25And whoever beareth any of the carcase of them shall wash his clothes, and be unclean until the evening. 26The carcases of every beast which divideth the hoof, and is not clovenfooted, nor cheweth the cud, are unclean to you: every one that toucheth them shall be unclean. 27And whatever goeth upon its paws, among all manner of beasts that go on all four, those are unclean to you: whoever toucheth their carcase shall be unclean until the evening. 28And he that beareth the carcase of them shall wash his clothes, and be unclean until the evening: they are unclean to you.