Deuteronomy 16:5-7

5“You may not sacrifice the Passover in just any of the towns that the Lord your God is giving you.

6You must offer it only at the designated place of worship—the place the Lord your God chooses for his name to be honored. Sacrifice it there in the evening as the sun goes down on the anniversary of your exodus from Egypt.

7Roast the lamb and eat it in the place the Lord your God chooses. Then you may go back to your tents the next morning.