Leviticus 15:28-30

New Revised Standard Version, Anglicised Catholic Edition

²⁸ If she is cleansed of her discharge, she shall count seven days, and after that she shall be clean. ²⁹ On the eighth day she shall take two turtle-doves or two pigeons and bring them to the priest at the entrance of the tent of meeting. ³⁰ The priest shall offer one for a sin-offering and the other for a burnt-offering; and the priest shall make atonement on her behalf before the Lord for her unclean discharge.