Leviticus 5:7

7 “ ‘Anyone who cannot afford a lamb is to bring two doves or two young pigeons to the LORD as a penalty for their sin—one for a sin offering and the other for a burnt offering.

Read Leviticus 5:7 Using Other Translations

And if he be not able to bring a lamb, then he shall bring for his trespass, which he hath committed, two turtledoves, or two young pigeons, unto the LORD; one for a sin offering, and the other for a burnt offering.
"But if he cannot afford a lamb, then he shall bring to the LORD as his compensation for the sin that he has committed two turtledoves or two pigeons, one for a sin offering and the other for a burnt offering.
“But if you cannot afford to bring a sheep, you may bring to the LORD two turtledoves or two young pigeons as the penalty for your sin. One of the birds will be for a sin offering, and the other for a burnt offering.