Genesis 42:5

And Joseph's ten brethren went down to buy corn in Egypt.

But Benjamin, Joseph's brother, Jacob sent not with his brethren; for he said, Lest peradventure mischief befall him.

And Joseph [was] the governor over the land, [and] he [it was] that sold to all the people of the land: and Joseph's brethren came, and bowed down themselves before him [with] their faces to the earth.

And Joseph saw his brethren, and he knew them, but made himself strange unto them, and spake roughly unto them; and he said unto them, Whence come ye? And they said, From the land of Canaan to buy food.