Leviticus 15:5-8

15:5 Anyone who touches his bed must wash his clothes, bathe in water, and be unclean until evening. 15:6 The one who sits on the furniture the man with a discharge sits on must wash his clothes, bathe in water, and be unclean until evening. 15:7 The one who touches the body of the man with a discharge must wash his clothes, bathe in water, and be unclean until evening. 15:8 If the man with a discharge spits on a person who is ceremonially clean, that person must wash his clothes, bathe in water, and be unclean until evening.