Leviticus 11:24, 28, 31, 39

‘By these you shall become unclean; whoever touches the carcass of any of them shall be unclean until evening

Whoever carries any such carcass shall wash his clothes and be unclean until evening. It is unclean to you.

These are unclean to you among all that creep. Whoever touches them when they are dead shall be unclean until evening.

‘And if any animal which you may eat dies, he who touches its carcass shall be unclean until evening.