Leviticus 22:20-22

20You shall not offer anything which has a blemish, because it will not be accepted for you.

21Whoever offers a sacrifice of peace offerings to the Lord to fulfill a special vow to the Lord or as a freewill offering from the herd or from the flock, it must be perfect to be accepted; there shall be no blemish in it.

22Animals that are blind or fractured or mutilated, or have a sore or a running wound or an itch or scabs, you shall not offer to the Lord nor make an offering of them by fire on the altar to the Lord.