Genesis 42:3-8

Then ten brothers of Joseph went down to buy grain from Egypt. But Jacob did not send Joseph’s brother Benjamin with his brothers, for he said, “I am afraid that harm may befall him.” So the sons of Israel came to buy grain among those who were coming, for the famine was in the land of Canaan also. Now Joseph was the ruler over the land; he was the one who sold to all the people of the land. And Joseph’s brothers came and bowed down to him with their faces to the ground. When Joseph saw his brothers he recognized them, but he disguised himself to them and spoke to them harshly. And he said to them, “Where have you come from?” And they said, “From the land of Canaan, to buy food.” But Joseph had recognized his brothers, although they did not recognize him.