Tamim al-Dari reported the Prophet (May peace be upon him) as saying; Religion conduct; religion consists in sincere conduct. The people asked; to whom should it be directed, Messenger of Allah? He replied : To Allah, his book, his Apostle, the leaders (public authorities) of the believers and all the believers, and the leaders (public authorities) of Muslim and the Muslims and the Muslims in general.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا سُهَيْلُ بْنُ أَبِي صَالِحٍ، عَنْ عَطَاءِ بْنِ يَزِيدَ، عَنْ تَمِيمٍ الدَّارِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنَّ الدِّينَ النَّصِيحَةُ إِنَّ الدِّينَ النَّصِيحَةُ إِنَّ الدِّينَ النَّصِيحَةُ " . قَالُوا لِمَنْ يَا رَسُولَ اللَّهِ قَالَ " لِلَّهِ وَكِتَابِهِ وَرَسُولِهِ وَأَئِمَّةِ الْمُؤْمِنِينَ وَعَامَّتِهِمْ وَأَئِمَّةِ الْمُسْلِمِينَ وَعَامَّتِهِمْ " .
sunnah.com