Leviticus 15:22-24

New Century Version

²² Anyone who touches something she has sat on must wash his clothes and bathe in water; that person will be unclean until evening. ²³ It does not matter if the person touched the woman’s bed or something she sat on; he will be unclean until evening.

²⁴ “‘If a man has sexual relations with a woman and her monthly period touches him, he will be unclean for seven days; every bed he lies on will be unclean.