Deuteronomy 16:6 DBY

⁴  And there shall be no leaven seen with thee in all thy borders seven days; neither shall any of the flesh, which thou sacrificedst at even on the first day, be left over night until the morning. --

⁵  Thou mayest not sacrifice the passover in one of thy gates, which Jehovah thy God giveth thee;

⁶  but at the place that Jehovah thy God will choose, to cause his name to dwell in, there thou shalt sacrifice the passover at even, at the going down of the sun, at the time that thou camest forth out of Egypt.

⁷  And thou shalt cook and eat it at the place which Jehovah thy God will choose; and in the morning shalt thou turn and go unto thy tents.

⁸  Six days thou shalt eat unleavened bread, and on the seventh day is a solemn assembly to Jehovah thy God; thou shalt do no work.