Leviticus 15:20-22

New Living Translation

²⁰ Anything on which the woman lies or sits during the time of her period will be unclean. ²¹ If any of you touch her bed, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening. ²² If you touch any object she has sat on, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening.