Leviticus 22:18-20

18“Speak to Aaron and to his sons, and to all Bnei-Yisrael, and say to them: Whoever is from the house of Israel, or one of the outsiders in Israel who brings his offering, whether it be any of their vows or any of their freewill offerings that they present to Adonai for a burnt offering—

19for you to be accepted—you are to offer a male without blemish, from the bulls, the sheep or the goats.

20But whatever has a blemish you are not to present, for it will not be acceptable on your behalf.