Leviticus 12:6-8

‘When the days of her purification are fulfilled, whether for a son or a daughter, she shall bring to the priest a lamb of the first year as a burnt offering, and a young pigeon or a turtledove as a sin offering, to the door of the tabernacle of meeting. Then he shall offer it before the LORD, and make atonement for her. And she shall be clean from the flow of her blood. This is the law for her who has borne a male or a female. ‘And if she is not able to bring a lamb, then she may bring two turtledoves or two young pigeons—one as a burnt offering and the other as a sin offering. So the priest shall make atonement for her, and she will be clean.’ ”