Leviticus 12:6-8

6‘1When the days of her purification are completed, for a son or for a daughter, she shall bring to the priest at the doorway of the tent of meeting a one year old lamb for a burnt offering and a young pigeon or a turtledove 2for a sin offering.

7Then he shall offer it before the Lord and make atonement for her, and she shall be cleansed from the 3flow of her blood. This is the law for her who bears a child, whether a male or a female.

8But if 4she cannot afford a lamb, then she shall take 5two turtledoves or two young pigeons, 6the one for a burnt offering and the other for a sin offering; and the 7priest shall make atonement for her, and she will be clean.’”