Leviticus 15:1-6 RSV

1 The LORD said to Moses and Aaron,
2 "Say to the people of Israel, When any man has a discharge from his body, his discharge is unclean.
3 And this is the law of his uncleanness for a discharge: whether his body runs with his discharge, or his body is stopped from discharge, it is uncleanness in him.
4 Every bed on which he who has the discharge lies shall be unclean; and everything on which he sits shall be unclean.
5 And any one who touches his bed shall wash his clothes, and bathe himself in water, and be unclean until the evening.
6 And whoever sits on anything on which he who has the discharge has sat shall wash his clothes, and bathe himself in water, and be unclean until the evening.