Leviticus 14:19-22

19The priest is to sacrifice the sin offering and make atonement for the one to be cleansed from his uncleanness. Afterward he will slaughter the burnt offering.

20The priest is to offer the burnt offering and the grain offering on the altar. The priest will make atonement for him, and he will be clean.

21“But if he is poor and cannot afford these, he is to take one male lamb for a guilt offering to be presented in order to make atonement for him, along with two quarts of fine flour mixed with olive oil for a grain offering, one-third of a quart of olive oil,

22and two turtledoves or two young pigeons, whatever he can afford, one to be a sin offering and the other a burnt offering.