Genesis 42:2-6

Then he said, “Look, I have heard that there is grain in Egypt; go down there and buy some for us from that place, so that we may live and not die.”

So ten of Joseph’s brothers 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 happen to him.”

So the sons of Israel came to buy grain among those who were coming, because the famine was also in the land of Canaan.

Now Joseph was the ruler over the land; he was the one who sold grain to all the people of the land. And Joseph’s brothers came and bowed down to him with their faces to the ground.