Leviticus 22:26-28

New International Version - UK

²⁶ The Lord said to Moses, ²⁷ ‘When a calf, a lamb or a goat is born, it is to remain with its mother for seven days. From the eighth day on, it will be acceptable as a food offering presented to the Lord. ²⁸ Do not slaughter a cow or a sheep and its young on the same day.