Sforno on Genesis 42:14/ספורנו על בראשית מ״ב:י״ד

1הוא אשר דברתי אליכם, the very one of whom you have said that he is no longer, whereas you refused to be specific about what happened to him, is the one who went back to report all that you have seen here, or that you have decided to stay a while in order to engage in spying.