Deuteronomy 16:6-8

6You must go to the place that he will choose as his special home. You must kill the animal there, at sunset. That was the time of day when you came out of Egypt.

7Cook the meat and eat it in the place that the Lord your God will choose. The next morning, you may return to your tents.

8For the next six days, you must eat bread that you make without yeast. On the seventh day, you must all come together to worship the Lord your God. You must not do any work on that day.