Leviticus 15
17 And every garment, and every skin, whereon is the seed of copulation, shall be washed with water, and be unclean until the even.
18 Ref The woman also with whom a man shall lie with seed of copulation, they shall both bathe themselves in water, and be unclean until the even.
19 Ref And if a woman have an issue, `and' her issue in her flesh be blood, she shall be in her impurity seven days: and whosoever toucheth her shall be unclean until the even.
20 Ref And everything that she lieth upon in her impurity shall be unclean: everything also that she sitteth upon shall be unclean.
21 Ref And whosoever toucheth her bed shall wash his clothes, and bathe himself in water, and be unclean until the even.
22 And whosoever toucheth anything that she sitteth upon shall wash his clothes, and bathe himself in water, and be unclean until the even.
23 And if it be on the bed, or on anything whereon she sitteth, when he toucheth it, he shall be unclean until the even.