Exodus 12:4-8 If the household is too small for a whole lamb, they are to share with the nearest neighbor based on the number of people, and apportion the lamb accordingly.

BSB⁽ⁱ⁾ ⁴ If the household is too small for a whole lamb, they are to share with the nearest neighbor based on the number of people, and apportion the lamb accordingly. ⁵ Your lamb must be an unblemished year-old male, and you may take it from the sheep or the goats. ⁶ You must keep it until the fourteenth day of the month, when the whole assembly of the congregation of Israel will slaughter the animals at twilight. ⁷ They are to take some of the blood and put it on the sides and tops of the doorframes of the houses where they eat the lambs. ⁸ They are to eat the meat that night, roasted over the fire, along with unleavened bread and bitter herbs.