Leviticus 15:28-30 - Purity Regulations From Female Bodily Discharges
28 But when she is clean 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 unto her two turtledoves or two young pigeons and bring them unto the priest, to the door of the tabernacle of the testimony; 30 and the priest shall offer the one as sin and the other as a burnt offering; and the priest shall reconcile her before the LORD of the issue of her uncleanness.