Leviticus 15:19-21

¶ And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until the even.

And every thing that she lieth upon in her separation shall be unclean: every thing also that she sitteth upon shall be unclean.

And whosoever toucheth her bed shall wash his clothes, and bathe himself in water, and be unclean until the even.