Leviticus 12:6
And when the days of her purifying are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year for a burnt offering, and a young pigeon, or a turtledove, for a sin offering, unto the door of the tabernacle of the congregation, unto the priest:
Cross-reference
Leviticus 1:10-13 provides the regulations for the burnt offering of a lamb that the woman brings.
Leviticus 5:6-10 gives the law for the sin offering, which the woman also brings in this context.
Leviticus 15:29 prescribes the exact same bird offering for a woman with a discharge, directly mirroring this verse.
Leviticus 14:22 similarly allows turtledoves or pigeons for a poor person's offering, paralleling this verse.
Leviticus 15:14 also requires two birds for a man's discharge, similar to the woman's offering here.
Luke 2:22 describes Mary fulfilling the purification law from this verse, directly applying it.
Luke 2:24 directly cites this offering of turtledoves, showing Mary and Joseph obeying the law.
Numbers 6:10 uses the same bird offering for a defiled Nazirite, showing a shared purification procedure.