Genesis 42:8

6Joseph was the governor over the land. It was he who sold to all the people of the land. Joseph’s brothers came, and bowed themselves down to him with their faces to the earth.

7Joseph saw his brothers, and he recognized them, but acted like a stranger to them, and spoke roughly with them. He said to them, “Where did you come from?” They said, “From the land of Canaan, to buy food.”

8Joseph recognized his brothers, but they didn’t recognize him.

9Joseph remembered the dreams which he dreamed about them, and said to them, “You are spies! You have come to see the nakedness of the land.”

10They said to him, “No, my lord, but your servants have come to buy food.