Genesis 44:1-3

1And he commanded the steward of his house, saying, Fill the men’s sacks with food, as much as they can carry, and put every man’s money in his sack’s mouth.1

2And put my cup, the silver cup, in the sack’s mouth of the youngest, and his food money. And he did according to the word that Joseph had spoken.

3As soon as the morning was light, the men were sent away, they and their donkeys.