Leviticus 15:25-27

25And if a woman shall have an issue of her blood many days out of the time of her separation, or if it shall run beyond the time of her separation; all the days of the issue of her uncleanness shall be as the days of her separation: she shall be unclean. 26Every bed on which she lieth all the days of her issue shall be to her as the bed of her separation: and whatever she sitteth upon shall be unclean, as the uncleanness of her separation. 27And whoever toucheth those things shall be unclean, and shall wash his clothes, and bathe himself in water, and be unclean until the evening.