Leviticus 22:18-20

18“Speak to Aaron, his sons, and all the Israelites and tell them, ‘When any man from the house of Israel or from the foreigners in Israel presents his offering for any of the votive or freewill offerings which they present to the Lord as a burnt offering,

19if it is to be acceptable for your benefit it must be a flawless male from the cattle, sheep, or goats.

20You must not present anything that has a flaw, because it will not be acceptable for your benefit.