“How will you judge?”

Harith ibn Amr reported: Some men who were companions of Mu’adh said the Messenger of Allah, peace be upon him, sent Mu’adh to Yemen. The Prophet said, “How will you judge?” Mu’adh said, “I will judge according to what is in the Book of Allah.” He said, “And if it is not in the Book of Allah?” He said, “Then with the Sunnah of the Messenger of Allah.” He said, “And if it is not in the Sunnah of the Messenger of Allah?” He said, “Then I will strive to form an opinion.” The Messenger of Allah, peace be upon him, said, “All praise is due to Allah who has made suitable the messenger of the Messenger of Allah.”

[Sunan At-Tirmidhi, Book of Judgments, Number 1327, Da’if]

عَنْ الْحَارِثِ بْنِ عَمْرٍو عَنْ رِجَالٍ مِنْ أَصْحَابِ مُعَاذٍ  أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بَعَثَ مُعَاذًا إِلَى الْيَمَنِ فَقَالَ كَيْفَ تَقْضِي فَقَالَ أَقْضِي بِمَا فِي كِتَابِ اللَّهِ قَالَ فَإِنْ لَمْ يَكُنْ فِي كِتَابِ اللَّهِقَالَ فَبِسُنَّةِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ فَإِنْ لَمْ يَكُنْ فِي سُنَّةِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ أَجْتَهِدُ رَأْيِي قَالَ الْحَمْدُ لِلَّهِ الَّذِي وَفَّقَ رَسُولَ رَسُولِ اللَّهِ

سنن الترمذي كتاب الأحكام عن رسول الله صلى الله عليه وسلم باب ما جاء في القاضي كيف يقضي