Leviticus 15:4-9

Every bed whereon he that hath the issue lieth shall be unclean; and everything whereon he sitteth shall be unclean. And whosoever toucheth his bed shall wash his clothes, and bathe himself in water, and be unclean until the even. And he that sitteth on anything whereon he that hath the issue sat shall wash his clothes, and bathe himself in water, and be unclean until the even. And he that toucheth the flesh of him that hath the issue shall wash his clothes, and bathe himself in water, and be unclean until the even. And if he that hath the issue spit upon him that is clean, then he shall wash his clothes, and bathe himself in water, and be unclean until the even. And what saddle soever he that hath the issue rideth upon shall be unclean.