Genesis 42:17 in the World English Bible
He put them all together into custody for three days.
Context
16 Send one of you, and let him fetch your brother, and ye shall be kept in prison, that your words may be proved, whether there be any truth in you: or else by the life of Pharaoh surely ye are spies.
17 And he put them all together into ward three days.
18 And Joseph said unto them the third day, This do, and live; for I fear God: