ENOfficial
It was narrated that Tamim Ad-Dari said: "The Messenger of Allah (ﷺ) said: 'Religion is sincerity (An-Nasihah).' They said: 'To whom, O Messenger of Allah? He said: 'To Allah, to His Book, to His Messenger, to the imams of the Muslims and to their common folk"'
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ، عَنْ عَطَاءِ بْنِ يَزِيدَ، عَنْ تَمِيمٍ الدَّارِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنَّمَا الدِّينُ النَّصِيحَةُ " . قَالُوا لِمَنْ يَا رَسُولَ اللَّهِ قَالَ " لِلَّهِ وَلِكِتَابِهِ وَلِرَسُولِهِ وَلأَئِمَّةِ الْمُسْلِمِينَ وَعَامَّتِهِمْ " .
sunnah.com