Leviticus 15:4-8

4Any bed on which the man with the discharge lies will be unclean, and any furniture on which he sits will be unclean. 5Anyone who touches his bed must wash his clothes and bathe with water, and he will be unclean until evening. 6Whoever sits on furniture on which the man with the discharge was sitting must wash his clothes and bathe with water, and he will be unclean until evening.

7Whoever touches the body of the man with a discharge must wash his clothes and bathe with water, and he will be unclean until evening. 8If the man with the discharge spits on one who is clean, that person must wash his clothes and bathe with water, and he will be unclean until evening.