Leviticus 12:6-7

6When the days to wait are finished, the woman must come to the door of the Tent of Meeting. She must bring to the priest a sheep that is one year old for a burnt offering. And she must bring a bird for a sin offering. The bird must be a pigeon or a dove. These are gifts to God.

7The priest will offer the gifts to the Lord. Then the woman will become clean. These are the rules at the birth of a boy or of a girl.