Leviticus 5:2 (KJV)
Or if a soul touch any unclean thing whether it be a carcase of an unclean beast or a carcase of unclean cattle or the carcase of unclean creeping things and if it be hidden from him he also shall be unclean and guilty
Or if a soul touch any unclean thing whether it be a carcase of an unclean beast or a carcase of unclean cattle or the carcase of unclean creeping things and if it be hidden from him he also shall be unclean and guilty