Leviticus 22:19-22

19you shall offer of your own free will a male without blemish from the cattle, from the sheep, or from the goats.

20Whatever has a defect, you shall not offer, for it shall not be acceptable on your behalf.

21And whoever offers a sacrifice of a peace offering to the Lord, to fulfill his vow, or a freewill offering from the cattle or the sheep, it must be perfect to be accepted; there shall be no defect in it.

22Those that are blind or broken or maimed, or have an ulcer or eczema or scabs, you shall not offer to the Lord, nor make an offering by fire of them on the altar to the Lord.