ذَٰلِكَ لِيَعۡلَمَ أَنِّي لَمۡ أَخُنۡهُ بِٱلۡغَيۡبِ وَأَنَّ ٱللَّهَ لَا يَهۡدِي كَيۡدَ ٱلۡخَآئِنِينَ ٥٢
That is so he [i.e., al-ʿAzeez] will know that I did not betray him in [his] absence and that Allāh does not guide the plan of betrayers.
Translation: Saheeh International (English)
Each word's meaning and sound
The wife of the minister said that this disclosure was so that Joseph would know through her confession that it was she who had tried to seduce him and that he was truthful, and that she had not lied about him in his absence, as it had become clear to her from what had happened that Allah does not give success to those who lie and scheme.
Al-Mukhtasar in interpreting the Noble Quran