Exodus 12:3-6 New King James Version (NKJV)
3 Speak to all the congregation of Israel, saying: ‘On the tenth of this month every man shall take for himself a lamb, according to the house of his father, a lamb for a household. 4 And if the household is too small for the lamb, let him and his neighbor next to his house take it according to the number of the persons; according to each man’s need you shall make your count for the lamb. 5 Your lamb shall be without[a] blemish, a male [b]of the first year. You may take it from the sheep or from the goats. 6 Now you shall keep it until the fourteenth day of the same month. Then the whole assembly of the congregation of Israel shall kill it at twilight.