'No ruler is appointed but he has tow groups of advisers: A group which urges him to do good and tells him not to do evil, and a group which does its best to corrupt him. Whoever is protected from their evil is indeed protected. And he (the ruler) belongs to the group that has the greater influence over him." (Using translation from Nasāʾī 4201)
قَالَ رَسُولُ اللهِ ﷺ مَا مِنْ وَالٍ إِلَّا وَلَهُ بِطَانَتَانِ بِطَانَةٌ تَأْمُرُهُ بِالْمَعْرُوفِ وَتَنْهَاهُ عَنِ الْمُنْكَرِ وَبِطَانَةٌ لَا تَأْلُوهُ خَبَالًا فَمَنْ وُقِيَ شَرَّهَا فَقَدْ وُقِيَ وَهُوَ مِنَ الَّتِي تَغْلِبُ عَلَيْهِ مِنْهُمَا