Leviticus 22:21-23

²¹And whoever offereth a sacrifice of peace-offerings to the LORD to accomplish his vow, or a free-will-offering in beeves, or sheep, it shall be perfect to be accepted: there shall be in it no blemish.

²²Blind, or broken, or maimed, or having a wen, or scurvy, or scabbed, ye shall not offer these to the LORD, nor make an offering by fire of them upon the altar to the LORD.

²³Either a bullock, or a lamb that hath any thing superfluous or lacking in his parts, that mayest thou offer for a free-will-offering; but for a vow it shall not be accepted.