Leviticus 14:22

And two turtledoves, or two young pigeons, such as he is able to get; and the one shall be a sin offering, and the other a burnt offering.

Cross-references

Leviticus 14:30 repeats the same bird offering instructions later in the same purification ritual.

Leviticus 5:7 prescribes the exact same pair of birds as a substitute for a lamb in a different offering.

Leviticus 12:8 gives the identical substitute of two turtledoves or pigeons for those who cannot afford a lamb.

Leviticus 15:14 uses the exact same bird pair for purification after a discharge — a parallel unclean condition.

Numbers 6:10 prescribes the same two birds (turtledoves or pigeons) for a Nazirite's sin and burnt offering after defilement, mirroring the leper's purification rite.

Luke 5:14 Citation

Luke 5:14 directly commands the healed leper to offer the sacrifice Moses prescribed — this is the very law being fulfilled.