[Machine] The book of Umar to Abu Musa. After that, know that judgment is a firm obligation and a followed tradition. Understand, when it is presented to you, that a righteous word will not benefit if it does not have an effect among people regarding your face, your assembly, and your justice. Until a noble person does not desire to defame you, and a weak person does not fear your oppression.  

كِتَابُ عُمَرَ إِلَى أَبِي مُوسَى ؓ أَمَّا بَعْدُ فَإِنَّ الْقَضَاءَ فَرِيضَةٌ مُحْكَمَةٌ وَسُنَّةٌ مُتَّبَعَةٌ افْهَمْ إِذَا أُدْلِيَ إِلَيْكَ فَإِنَّهُ لَا يَنْفَعُ كَلِمَةُ حَقٍّ لَا نَفَاذَ لَهُ آسِ بَيْنَ النَّاسِ فِي وَجْهِكَ وَمَجْلِسِكَ وَعَدْلِكَ حَتَّى لَا يَطْمَعَ شَرِيفٌ فِي حَيْفِكَ وَلَا يَخَافَ ضَعِيفٌ مِنْ جَوْرِكَ