Genesis 42:6-7

6Now Joseph was the ruler of the land; he was the one who sold grain to all its people. So when his brothers arrived, they bowed down before him with their faces to the ground. 7And when Joseph saw his brothers, he recognized them, but he treated them as strangers and spoke harshly to them. “Where have you come from?” he asked.

“From the land of Canaan,” they replied. “We are here to buy food.”