A man disputed with az-Zubayr about streamlets in the lava plain which was irrigated by them. The Ansari said: Release the water and let it run, but az-Zubayr refused. The Holy Prophet ﷺ said to az-Zubayr: Water (your ground), Zubayr, then let the water run to your neighbour. The Ansari then became angry and said: Messenger of Allah! it is because he is your cousin! Thereupon the face of the Messenger of Allah ﷺ changed colour and he said: Water (your ground), then keep back the water till it returns to the embankment. Az-Zubayr said: By Allah! I think this verse came down about that: "But no , by thy Lord! they can have no (real) faith, until they make thee judge....."
أَنَّ رَجُلاً خَاصَمَ الزُّبَيْرَ فِي شِرَاجِ الْحَرَّةِ الَّتِي يَسْقُونَ بِهَا فَقَالَ الأَنْصَارِيُّ سَرِّحِ الْمَاءَ يَمُرُّ فَأَبَى عَلَيْهِ الزُّبَيْرُ فَقَالَ رَسُولُ اللَّهِ ﷺ لِلزُّبَيْرِ اسْقِ يَا زُبَيْرُ ثُمَّ أَرْسِلْ إِلَى جَارِكَ فَغَضِبَ الأَنْصَارِيُّ فَقَالَ يَا رَسُولَ اللَّهِ أَنْ كَانَ ابْنَ عَمَّتِكَ فَتَلَوَّنَ وَجْهُ رَسُولِ اللَّهِ ﷺ ثُمَّ قَالَ اسْقِ ثُمَّ احْبِسِ الْمَاءَ حَتَّى يَرْجِعَ إِلَى الْجَدْرِ فَقَالَ الزُّبَيْرُ فَوَاللَّهِ إِنِّي لأَحْسِبُ هَذِهِ الآيَةَ نَزَلَتْ فِي ذَلِكَ { فَلاَ وَرَبِّكَ لاَ يُؤْمِنُونَ حَتَّى يُحَكِّمُوكَ } الآيَةَ