Leviticus 15:28-30 - Purity Regulations From Female Bodily Discharges
28 But, if she he clean from her flow, then shall she count to her-self seven days and afterwards, shall she count herself clean. 29 And, on the eighth day, shall she take to herself two turtle doves, or two young pigeons, - and bring them in unto the priest, unto the entrance of the tent of meeting; 30 and the priest shall offer the one as a sin-bearer, and the other as an ascending-sacrifice, - so shall the priest put a propitiatory-covering over her, before Yahweh, because of her unclean flow.