Leviticus 15:22-24

Amplified Bible

²² Whoever touches anything on which she sits shall wash his clothes and bathe in water, and be unclean until evening. ²³ And if it is on her bed or on the thing on which she is sitting, when he touches it, he shall be unclean until evening. ²⁴ If a man actually lies with her so that her menstrual impurity is on him, he shall be unclean for seven days; and every bed on which he lies shall be unclean.