Genesis 42:15-17

New Century Version

¹⁵ But I will give you a way to prove you are telling the truth. As surely as the king lives, you will not leave this place until your youngest brother comes here. ¹⁶ One of you must go and get your brother. The rest of you will stay here in prison. We will see if you are telling the truth. If not, as surely as the king lives, you are spies.” ¹⁷ Then Joseph put them all in prison for three days.