Vayikra 15:24-26

Orthodox Jewish Bible

²⁴ And if any ish lie with her at all, and her niddah (menstrual flow) be upon him, he shall be tamei seven days; and all the bed whereon he lieth shall be tamei.

²⁵ And if an isha have a discharge of her dahm many days out of the time of her niddah, or if it run beyond the time of her niddah, all the days of the discharge of her tumah shall be as the days of her niddah; she shall be tamei.

²⁶ Every bed whereon she lieth all the days of her discharge shall be unto her as the bed of her niddah; and whatsoever she sitteth upon shall be tamei, as the tumah of her niddah.