Leviticus 15:25-29

²⁵And if a woman have an issue of her blood many days out of the time of her separation, or if it run beyond the time of her separation: all the days of the issue of her uncleanness shall she be as in the days of her separation; she shall be unclean.

²⁶Every bed whereon she may lie all the days of her issue shall be unto her as the bed of her separation; and whatever vessel she may sit upon shall be unclean, as the uncleanness of her separation.

²⁷And whosoever toucheth these things shall be unclean; and he shall wash his clothes, and bathe himself in water, and be unclean until the evening.

²⁸And when she becometh clean of her issue, then shall she number to herself seven days, and after that shall she be clean.

²⁹And on the eighth day shall she take unto herself two turtle-doves, or two young pigeons, and bring them unto the priest, to the door of the tabernacle of the congregation.