Leviticus 22:21-23

New Catholic Bible

²¹ If someone offers a peace offering as the fulfillment of a vow or as a free-will offering, whether it be from the cattle or the sheep, it must be perfect to be acceptable. It must have no defect. ²² You shall not offer anything that is blind or injured or maimed, or anything with sores or scabs or scales. You shall not use these as an offering to the Lord by fire, on the altar to the Lord. ²³ You can offer a young bull or a lamb that has any parts that are in excess or lacking as a free-will offering, but it is not acceptable for a votive offering.