Leviticus 12:6-7

6And when the days of her cleansing are fulfilled, for a son or for a daughter, she shall bring a yearling lamb for a burnt-offering, and a young pigeon or a turtle-dove for a sin-offering, to the entrance of the tent of meeting, unto the priest.

7And he shall present it before Jehovah, and make atonement for her; and she shall be clean from the flux of her blood. This is the law for her that hath borne a male or a female.