Leviticus 11:8

11:8 You must not eat from their meat and you must not touch their carcasses; they are unclean to you.

Leviticus 11:24-25

Carcass Uncleanness

11:24 “‘By these you defile yourselves; anyone who touches their carcass will be unclean until the evening, 11:25 and anyone who carries their carcass must wash his clothes and will be unclean until the evening.