Leviticus 15:25-29

²⁵And if a woman have an issue of blood many days, not in the time of her separation; if the blood should also flow after her separation, all the days of the issue of her uncleanness shall be as the days of her separation: she shall be unclean.

²⁶And every bed on which she shall lie all the days of her flux shall be to her as the bed of her separation, and every seat whereon she shall sit shall be unclean according to the uncleanness of her separation.

²⁷Every one that touches it shall be unclean; and he shall wash his garments, and bathe his body in water, and shall be unclean till evening.

²⁸But if she shall be cleansed from her flux, then she shall number to herself seven days, and afterwards she shall be esteemed clean.

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