Leviticus 15:4-9

Any bed on which the man with the discharge lies and anything on which he sits will be ceremonially unclean. 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. Any saddle blanket on which the man rides will be ceremonially unclean.