Genesis 43:16-18

16And Joseph saw Benjamin with them, and said to the [man] who was over his house, Bring the men into the house, and slaughter cattle, and make ready; for the men shall eat with me at noon.

17And the man did as Joseph had said; and the man brought the men into Joseph's house.

18And the men were afraid because they were brought into Joseph's house, and said, Because of the money that was returned to us in our sacks at the beginning are we brought in, that he may turn against us, and fall upon us and take us for bondmen, and our asses.