TSK
Treasury of Scripture Knowledge references in NET.
“‘If he cannot afford an animal from the flock, he must bring his penalty for guilt for his sin that he has committed, two turtledoves or two young pigeons, to the LORD, one for a sin offering and one for a burnt offering.
If she cannot afford a sheep, then she must take two turtledoves or two young pigeons, one for a burnt offering and one for a sin offering, and the priest is to make atonement on her behalf, and she will be clean.’”
and to offer a sacrifice according to what is specified in the law of the Lord, a pair of doves or two young pigeons.
For it is indeed fitting for us to have such a high priest: holy, innocent, undefiled, separate from sinners, and exalted above the heavens.