Leviticus 22:21 mentions the peace offering. In conjunction with the whole burnt offering in Leviticus 22:18, these make up the two most common sacrifices in ancient Israel. It is assumed that other, less common sacrifices, are included in this prohibition.
21 And when anyone offers a sacrifice of peace offerings to the LORD to fulfill a vow or as a freewill offering from the herd or from the flock, to be accepted it must be perfect; there shall be no blemish in it.