Leviticus 22:28-30

Young's Literal Translation

²⁸ but an ox or sheep -- it and its young one, ye do not slaughter in one day.

²⁹ `And when ye sacrifice a sacrifice of thanksgiving to Jehovah, at your pleasure ye do sacrifice,

³⁰ on that day it is eaten, ye do not leave of it till morning; I [am] Jehovah;