Leviticus 12:6-7

6“When the days of her purification are completed for a son or for a daughter, she is to bring to the kohen, at the entrance of the Tent of Meeting, a year old lamb for a burnt offering and a young pigeon or a turtledove, for a sin offering.

7He is to present it before Adonai and make atonement for her. Then she will be cleansed from the discharge of her blood. This is the Torah for her who gives birth, whether to a male or a female child.