Leviticus 15:22-24

Complete Jewish Bible

²² Whoever touches anything she sits on is to wash his clothes and bathe himself in water; he will be unclean until evening. ²³ Whether he is on the bed or on something she sits on, when he touches it, he will be unclean until evening. ²⁴ If a man goes to bed with her, and her menstrual flow touches him, he will be unclean seven days; and every bed he lies on will be unclean.