Leviticus 12:7-8

American Standard Version

⁷ and he shall offer it before Jehovah, and make atonement for her; and she shall be cleansed from the fountain of her blood. This is the law for her that beareth, whether a male or a female. ⁸ And if her means suffice not for a lamb, then she shall take two turtle-doves, or two young pigeons; the one for a burnt-offering, and the other for a sin-offering: and the priest shall make atonement for her, and she shall be clean.