Leviticus 11:24, 28, 31, 39

“The following creatures will make you ceremonially unclean. If any of you touch their carcasses, you will be defiled until evening.

If you pick up its carcass, you must wash your clothes, and you will remain defiled until evening. These animals are unclean for you.

All these small animals are unclean for you. If any of you touch the dead body of such an animal, you will be defiled until evening.

“If an animal you are permitted to eat dies and you touch its carcass, you will be defiled until evening.