Leviticus 12:4-6

Revised Standard Version Catholic Edition

⁴ Then she shall continue for thirty-three days in the blood of her purifying; she shall not touch any hallowed thing, nor come into the sanctuary, until the days of her purifying are completed. ⁵ But if she bears a female child, then she shall be unclean two weeks, as in her menstruation; and she shall continue in the blood of her purifying for sixty-six days.

⁶ “And when the days of her purifying are completed, whether for a son or for a daughter, she shall bring to the priest at the door of the tent of meeting a lamb a year old for a burnt offering, and a young pigeon or a turtledove for a sin offering,