If the man with the discharge touches anyone without first rinsing his hands with water, the one who was touched must wash his clothes and bathe with water, and he will be unclean until evening.

Leviticus 15:10
Whoever touches anything that was under him will be unclean until evening, and whoever carries such things must wash his clothes and bathe with water, and he will be unclean until evening.

Leviticus 15:12
Any clay pot that the man with the discharge touches must be broken, and any wooden utensil must be rinsed with water.

And whomsoever he touches that has the issue, and has not rinsed his hands in water, he shall wash his clothes, and bathe himself in water, and be unclean until the even.