Exodus 12:6-10

6You shall keep it until the fourteenth day of the same month, then the whole assembly of the congregation of Israel is to slaughter it at twilight.

7Moreover, they shall take some of the blood and put it on the two doorposts and on the lintel [above the door] of the houses in which they eat it.

8They shall eat the meat that same night, roasted in fire, and they shall eat it with unleavened bread and bitter herbs.

9Do not eat any of it raw or boiled in water, but roasted in fire—both its head and its legs, along with its inner parts.

10You shall let none of the meat remain until the morning, and anything that remains left over until morning, you shall burn completely in the fire.