Leviticus 12:6-7 (New International Version)

 ⁶ " 'When the days of her purification for a son or daughter are over, she is to bring to the priest at the entrance to the Tent of Meeting a year-old lamb for a burnt offering and a young pigeon or a dove for a sin offering. ⁷ He shall offer them before the LORD to make atonement for her, and then she will be ceremonially clean from her flow of blood.
      " 'These are the regulations for the woman who gives birth to a boy or a girl.