وَعَنِ ابْنِ مَوْهَبٍ: أَنَّ عُثْمَانَ بْنِ عَفَّانَ رَضِيَ اللَّهُ عَنْهُ قَالَ لِابْنِ عُمَرَ: اقْضِ بَين النَّاس قَالَ: أَو تعاقبني يَا أَمِيرَ الْمُؤْمِنِينَ؟ قَالَ: وَمَا تَكْرَهُ مِنْ ذَلِك وَقد كَانَ أَبوك قَاضِيا؟ قَالَ: لِأَنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: «مَنْ كَانَ قَاضِيًا فَقَضَى بِالْعَدْلِ فَبِالْحَرِيِّ أَنْ يَنْقَلِبَ مِنْهُ كَفَافًا» . فَمَا راجعَه بعدَ ذَلِك. رَوَاهُ التِّرْمِذِيّ
Ibn Mauhib told that when ‘Uthman b. ‘Affan asked Ibn ‘Umar to act as qadi among the people he asked the commander of the faithful to excuse him. He asked him what objection he had to that when his father had been holding such an office, and he replied that it was because he had heard God’s Messenger say, “If anyone is a qadi and fulfils the office with justice he should rather turn away from it with neither credit nor blame.” After that he did not ask him again. Tirmidhi transmitted it.