Leviticus 15:28-30 - Purity Regulations From Female Bodily Discharges
28 But if she is cleansed of her issue, then she shall number to herself seven days, and after that she shall be clean. 29 And on the eighth day she shall take two turtle-doves to her, or two young pigeons, and bring them to the priest, to the door of the tabernacle of the congregation. 30 And the priest shall offer the one for a sin offering, and the other for a burnt offering. And the priest shall make atonement for her before Jehovah for the issue of her uncleanness.