Exodus 12:8-10
8
They shall eat the flesh in that night, roasted with fire, and unleavened bread. They shall eat it with bitter herbs.
9
Don't eat it raw, nor boiled at all with water, but roasted with fire; with its head, its legs and its inner parts.
10
You shall let nothing of it remain until the morning; but that which remains of it until the morning you shall burn with fire.