Leviticus 22:20-22

Do not present an animal with defects, because the LORD will not accept it on your behalf. “If you present a peace offering to the LORD from the herd or the flock, whether it is to fulfill a vow or is a voluntary offering, you must offer a perfect animal. It may have no defect of any kind. You must not offer an animal that is blind, crippled, or injured, or that has a wart, a skin sore, or scabs. Such animals must never be offered on the altar as special gifts to the LORD.