Deuteronomy 16:4-6

New King James Version

^4 (A)And no leaven shall be seen among you in all your territory for seven days, nor shall any of the meat which you sacrifice the first day at twilight remain overnight until ^(B)morning.

⁵ “You may not sacrifice the Passover within any of your gates which the Lord your God gives you; ⁶ but at the place where the Lord your God chooses to make His name abide, there you shall sacrifice the Passover ^(C)at twilight, at the going down of the sun, at the time you came out of Egypt.