Exodus 12:4

and if the household is too little for a lamb, then he and his neighbor next to his house shall take one according to the number of the souls. You shall make your count for the lamb according to what everyone can eat.

And if the household be too little for the lamb, let him and his neighbour next unto his house take it according to the number of the souls; every man according to his eating shall make your count for the lamb.