Leviticus 15:25-30

25And if a woman have her flux of blood many days out of the time of her separation, or if she have the flux beyond the time of her separation, all the days of the flux of her uncleanness shall she be as [in] the days of her separation: she is unclean.

26Every bed whereon she lieth all the days of her flux shall be unto her as the bed of her separation; and every object on which she sitteth shall be unclean, according to the uncleanness of her separation.

27And whoever toucheth them shall be unclean, and shall wash his clothes, and bathe in water, and be unclean until the even.

28And if she be cleansed of her flux then she shall count seven days, and after that she shall be clean.

29And on the eighth day she shall take two turtle-doves, or two young pigeons, and bring them unto the priest, unto the entrance of the tent of meeting.

30And the priest shall offer the one as a sin-offering, and the other as a burnt-offering; and the priest shall make atonement for her before Jehovah for the flux of her uncleanness.