Narrated Aisha, Ummul Mu'minin: The Messenger of Allah (ﷺ) said: When Allah has a good purpose for a ruler, He appoints for him a sincere minister who reminds him if he forgets and helps him if he remembers; but when Allah has a different purpose from that for him. He appoints for him an evil minister who does not remind him if he forgets and does not help him if he remembers.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا مُوسَى بْنُ عَامِرٍ الْمُرِّيُّ، حَدَّثَنَا الْوَلِيدُ، حَدَّثَنَا زُهَيْرُ بْنُ مُحَمَّدٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْقَاسِمِ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِذَا أَرَادَ اللَّهُ بِالأَمِيرِ خَيْرًا جَعَلَ لَهُ وَزِيرَ صِدْقٍ إِنْ نَسِيَ ذَكَّرَهُ وَإِنْ ذَكَرَ أَعَانَهُ وَإِذَا أَرَادَ اللَّهُ بِهِ غَيْرَ ذَلِكَ جَعَلَ لَهُ وَزِيرَ سُوءٍ إِنْ نَسِيَ لَمْ يُذَكِّرْهُ وَإِنْ ذَكَرَ لَمْ يُعِنْهُ " .
sunnah.com