Exodus 12:8-10

American Standard Version

⁸ And they shall eat the flesh in that night, roast with fire, and unleavened bread; with bitter herbs they shall eat it. ⁹ Eat not of it raw, nor boiled at all with water, but roast with fire; its head with its legs and with the inwards thereof. ¹⁰ And ye shall let nothing of it remain until the morning; but that which remaineth of it until the morning ye shall burn with fire.