Leviticus 22:28-30

New Living Translation

²⁸ But you must not slaughter a mother animal and her offspring on the same day, whether from the herd or the flock. ²⁹ When you bring a thanksgiving offering to the Lord, sacrifice it properly so you will be accepted. ³⁰ Eat the entire sacrificial animal on the day it is presented. Do not leave any of it until the next morning. I am the Lord.