رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 181
The Book of Miscellany
Giving Counsel
فالأول: عَنْ أَبِي رُقَيَّةَ تَمِيمِ بْنِ أَوْسٍ الدَّارِيِّ رَضِيَ اللهُ عَنْهُ أَنَّ النَّبِيَّ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ قَالَ: الدِّينُ النَّصِيحَةُ قُلْنَا: لِمَنْ؟ قَالَ: لِلَّهِ وَلِكِتَابِهِ وَلِرَسُولِهِ وَلِأَئِمَّةِ الْمُسْلِمِينَ وَعَامَّتِهِمْ ((رَوَاهُ مُسْلِمٌ)).
Tamim bin Aus Ad-Dari (May Allah be pleased with him) reported: The Prophet (ﷺ) said, "Ad-Deen is sincerity". We said: "For whom?" He replied, "For Allah, His Book, His Messenger and for the leaders of the Muslims and their masses". [Muslim].
Riyad as-Salihin, 181