Leviticus 22:26-28

Amplified Bible, Classic Edition

²⁶ And the Lord said to Moses,

²⁷ When a bull or a sheep or a goat is born, it shall remain for seven days with its mother; and from the eighth day on it shall be accepted for an offering made by fire to the Lord.

²⁸ And whether [the mother] is a cow or a ewe, you shall not kill her and her young both in one day.