Leviticus 15:5-8

ISV(i) 5 Any person who touches his bed is to wash his garments and bathe with water, and he will remain unclean until evening. 6 Whoever sits on any object on which the one with the discharge has sat is to wash his clothes and bathe with water, and he will remain unclean until evening.
7 “Whoever touches the body of someone with a discharge is to wash his clothes and bathe with water, and he will remain unclean until evening. 8 Whoever has a discharge and spits on someone who is clean, then he is to wash his clothes and bathe with water, and he will remain unclean until evening.