Sunan Abu Dawud #3592 · The Office of the Judge (Kitab Al-Aqdiyah)

Sunan Abu DawudSome companions of Mu'adh ibn Jabal said
Sunan Abu Dawud · Book 25 · The Office of the Judge (Kitab Al-Aqdiyah)
Sunan Abu Dawud · كتاب 25 · كتاب الأقضية
When the Messenger of Allah (ﷺ) intended to send Mu'adh ibn Jabal to the Yemen, he asked: How will you judge when the occasion of deciding a case arises? He replied: I shall judge in accordance with Allah's Book. He asked: (What will you do) if you do not find any guidance in Allah's Book? He replied: (I shall act) in accordance with the Sunnah of the Messenger of Allah (ﷺ). He asked: (What will you do) if you do not find any guidance in the Sunnah of the Messenger of Allah (ﷺ) and in Allah's Book? He replied: I shall do my best to form an opinion and I shall spare no effort. The Messenger of Allah (ﷺ) then patted him on the breast and said: Praise be to Allah Who has helped the messenger of the Messenger of Allah to find something which pleases the Messenger of Allah
حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، عَنْ شُعْبَةَ، عَنْ أَبِي عَوْنٍ، عَنِ الْحَارِثِ بْنِ عَمْرِو بْنِ أَخِي الْمُغِيرَةِ بْنِ شُعْبَةَ، عَنْ أُنَاسٍ، مِنْ أَهْلِ حِمْصَ مِنْ أَصْحَابِ مُعَاذِ بْنِ جَبَلٍ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم لَمَّا أَرَادَ أَنْ يَبْعَثَ مُعَاذًا إِلَى الْيَمَنِ قَالَ ‏
"‏ كَيْفَ تَقْضِي إِذَا عَرَضَ لَكَ قَضَاءٌ ‏"‏ ‏.‏ قَالَ أَقْضِي بِكِتَابِ اللَّهِ ‏.‏ قَالَ ‏"‏ فَإِنْ لَمْ تَجِدْ فِي كِتَابِ اللَّهِ ‏"‏ ‏.‏ قَالَ فَبِسُنَّةِ رَسُولِ اللَّهِ صلى الله عليه وسلم ‏.‏ قَالَ ‏"‏ فَإِنْ لَمْ تَجِدْ فِي سُنَّةِ رَسُولِ اللَّهِ صلى الله عليه وسلم وَلاَ فِي كِتَابِ اللَّهِ ‏"‏ ‏.‏ قَالَ أَجْتَهِدُ رَأْيِي وَلاَ آلُو ‏.‏ فَضَرَبَ رَسُولُ اللَّهِ صلى الله عليه وسلم صَدْرَهُ وَقَالَ ‏"‏ الْحَمْدُ لِلَّهِ الَّذِي وَفَّقَ رَسُولَ رَسُولِ اللَّهِ لِمَا يُرْضِي رَسُولَ اللَّهِ ‏"‏ ‏.‏
Reference : Sunan Abu Dawud 3592In-book reference : Book 25, Hadith 22