Exodus 12:6-9
12:6 You must care for it until the fourteenth day of this month, and then the whole community of Israel will kill it around sundown.
12:7 They will take some of the blood and put it on the two side posts and top of the doorframe of the houses where they will eat it.
12:8 They will eat the meat the same night; they will eat it roasted over the fire with bread made without yeast and with bitter herbs.
12:9 Do not eat it raw or boiled in water, but roast it over the fire with its head, its legs, and its entrails.