Surat Yusuf (Joseph) - يوسف

ذَٰلِكَ لِيَعْلَمَ أَنِّى لَمْ أَخُنْهُ بِٱلْغَيْبِ وَأَنَّ ٱللَّهَ لَا يَهْدِى كَيْدَ ٱلْخَآئِنِينَ ﴿٥٢﴾

This is that he might know that I have not been unfaithful to him in secret and that Allah does not guide the device of the unfaithful.