Genesis 42:6

Joseph’s brethren came and bowed down themselves before him. — Throughout the land of Egypt Joseph would sell by deputy, and only give general directions; but the arrival of so large a party as Joseph’s ten brethren, each probably with several attendants, would be reported to the governor in person, as certainly was the case with Abraham when he went into Egypt (Genesis 12:14). Such visits would happen only occasionally, and the arrival of foreigners was always a matter looked upon with suspicion, especially upon the Arabian frontier.