Leviticus 11:24-28, 39-40

Those insects will make you unclean, and anyone who touches the dead body of one of these insects will become unclean until evening. Anyone who picks up one of these dead insects must wash his clothes and be unclean until evening. “ ‘Some animals have split hoofs, but the hoofs are not completely divided; others do not chew the cud. They are unclean for you, and anyone who touches the dead body of one of these animals will become unclean. Of all the animals that walk on four feet, the animals that walk on their paws are unclean for you. Anyone who touches the dead body of one of these animals will become unclean until evening. Anyone who picks up their dead bodies must wash his clothes and be unclean until evening; these animals are unclean for you.

“ ‘Also, if an animal which you use for food dies, anyone who touches its body will be unclean until evening. Anyone who eats meat from this animal’s dead body must wash his clothes and be unclean until evening. Anyone who picks up the animal’s dead body must wash his clothes and be unclean until evening.