Genesis 44:1-3

1Now Joseph gave these instructions to the steward of his house: “Fill the men’s sacks with as much food as they can carry, and put each man’s silver in the mouth of his sack.

2Then put my cup, the silver one, in the mouth of the youngest one’s sack, along with the silver for his grain.” And he did as Joseph said.

3As morning dawned, the men were sent on their way with their donkeys.