Genesis 43:12, 15, 21-22

Take double the money with you. Give him back the money that was returned in the top of your sacks, for it may have been a mistake.

So the brothers set off for Egypt and took double the money, the many gifts, and Benjamin. Once they arrived, they presented themselves before Joseph.

but on our way home, when we camped for the night and opened our sacks, we found each one’s money in the top of his bag. All our money was there in our bags! We know it must have been an oversight of some kind, and we have no clue who put it there, so we have brought it all back with us. Plus, we have additional money to buy more food.”