Leviticus 22:21-24

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.

23For a freewill offering you may offer either a bull or a lamb which has an overgrown or stunted member (deformity), but for [the payment of] a vow it will not be accepted.

24You shall not offer to the Lord any animal which has its testicles bruised or crushed or torn or cut off, or sacrifice it in your land.