Leviticus 15:20-22

New American Standard Bible

²⁰ Everything also on which she lies during her menstrual impurity shall be unclean, and everything on which she sits shall be unclean. ²¹ Anyone who touches her bed shall wash his clothes and bathe in water and be unclean until evening. ²² Whoever touches any object on which she sits shall wash his clothes and bathe in water and be unclean until evening.