Leviticus 15:7-11

Also whoever touches the man with the discharge shall wash his clothes and bathe in water and be unclean until evening.

Or if the man with the discharge spits on one who is clean, he too shall wash his clothes and bathe in water and be unclean until evening.

Every saddle on which the man with the discharge rides becomes unclean.

Whoever then touches any of the things which were under him shall be unclean until evening, and the one who carries them shall wash his clothes and bathe in water and be unclean until evening.

Likewise, whomever the man with the discharge touches without having rinsed his hands in water shall wash his clothes and bathe in water and be unclean until evening.