Leviticus 22:25-28

²⁵Nor from the hand of the stranger shall ye present the bread of your God, of any of these; for their corruption is in them: a defect is in them; they shall not be accepted for you.

²⁶And Jehovah spoke to Moses, saying,

²⁷An ox, or a sheep, or a goat, when it is brought forth, shall be seven days under its dam; and from the eighth day and thenceforth it shall be accepted for an offering by fire to Jehovah.

²⁸A cow, or sheep — it and its young shall ye not slaughter in one day.