Qur'an 12:52

ذَٰلِكَ لِيَعْلَمَ أَنِّى لَمْ أَخُنْهُ بِٱلْغَيْبِ وَأَنَّ ٱللَّهَ لَا يَهْدِى كَيْدَ ٱلْخَآئِنِينَ

(Then Joseph said: I asked for) this, that he (my lord) may know that I betrayed him not in secret, and that surely Allah guideth not the snare of the betrayers.