Leviticus 15
10 Ref Whoever touches anything that was under him shall be unclean until the evening. He who carries those things shall wash his clothes, and bathe himself in water, and be unclean until the evening.
11 "'Whoever he who has the discharge touches, without having rinsed his hands in water, he shall wash his clothes, and bathe himself in water, and be unclean until the evening.