Leviticus 15:5-8, 13, 21

So if you touch the man’s bed, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening. If you sit where the man with the discharge has sat, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening. If you touch the man with the discharge, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening. If the man spits on you, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening.

“When the man with the discharge is healed, he must count off seven days for the period of purification. Then he must wash his clothes and bathe himself in fresh water, and he will be ceremonially clean.

If any of you touch her bed, you must wash your clothes and bathe yourself in water, and you will remain unclean until evening.