The virtue of a just ruler and the punishment of a tyrant; Encouragement to treat those under one's authority with kindness and the prohibition against causing them hardship Sahih Muslim 1827
Arabic hadith text
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَزُهَيْرُ بْنُ حَرْبٍ، وَابْنُ، نُمَيْرٍ قَالُوا حَدَّثَنَا سُفْيَانُ، بْنُ عُيَيْنَةَ عَنْ عَمْرٍو، - يَعْنِي ابْنَ دِينَارٍ - عَنْ عَمْرِو بْنِ أَوْسٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، قَالَ ابْنُ نُمَيْرٍ وَأَبُو بَكْرٍ يَبْلُغُ بِهِ النَّبِيَّ صلى الله عليه وسلم وَفِي حَدِيثِ زُهَيْرٍ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنَّالْمُقْسِطِينَ عِنْدَ اللَّهِ عَلَى مَنَابِرَ مِنْ نُورٍ عَنْ يَمِينِ الرَّحْمَنِ عَزَّ وَجَلَّ وَكِلْتَا يَدَيْهِ يَمِينٌ الَّذِينَ يَعْدِلُونَ فِي حُكْمِهِمْ وَأَهْلِيهِمْ وَمَا وَلُوا "
Translation
It has been narrated on the authority of 'Abdullah b. `Amr that the Messenger of Allah (ﷺ) said
"Those who are fair and just will be near to Allah onthrones of light, at the Right Hand of the Most Merciful, Glorified and Exalted is He, and both of His Hands are Right, those who are fair and just in their rulings and towards their families and those who are under their authority."