He disputed with a man among Ansar who had been present at Badr with the Messenger of Allah [SAW], concerning a stream in Al-Harrah from which they both used to water their date palm trees. The Ansari said: "Let the water flow." But he (Az-Zubair) refused. The Messenger of Allah [SAW] said: "Irrigate (your land), O Zubair! Then let the water flow to your neighbor." The Ansari became angry and said, "O Messenger of Allah, is it because he is your cousin?" The face of the Messenger of Allah [SAW] changed color (because of anger) and he said: "O Zubair! Irrigate (your land) then block the water, until it flows back to the walls." So the Messenger of Allah [SAW] allowed Az-Zubair to take his rights in full, although before that he had suggested to Az-Zubair a middle way that benefited both him and the Ansari. But when the Ansari made the Messenger of Allah [SAW] angry, he gave Az-Zubair his rights in full, as stated clearly in his ruling. Az-Zubair said: "I think that this Verse was revealed concerning this matter: 'But no, by your Lord, they can have no faith, until they make you (O Muhammad) judge in all disputes between them.'" (Using translation from Nasāʾī 5407)  

أَنَّهُ خَاصَمَ رَجُلًا مِنَ الْأَنْصَارِ قَدْ شَهِدَ بَدْرًا مَعَ رَسُولِ اللهِ ﷺ فِي شِرَاجِ الْحَرَّةِ كَانَا يَسْقِيَانِ بِهِ كِلَاهُمَا النَّخْلَ فَقَالَ الْأَنْصَارِيُّ سَرِّحِ الْمَاءَ يَمُرُّ عَلَيْهِ فَأَبَى عَلَيْهِ فَقَالَ رَسُولُ اللهِ ﷺ «اسْقِ يَا زُبَيْرُ ثُمَّ أَرْسِلِ الْمَاءَ إِلَى جَارِكَ» فَغَضِبَ الْأَنْصَارِيُّ فََقَالَ يَا رَسُولَ اللهِ أَنْ كَانَ ابْنَ عَمَّتِكَ فَتَلَوَّنَ وَجْهُ رَسُولِ اللهِ ﷺ ثُمَّ قَالَ يَا زُبَيْرُ اسْقِ ثُمَّ احْبِسِ الْمَاءَ حَتَّى يَرْجِعَ إِلَى الْجَدْرِ وَاسْتَوْعَى رَسُولُ اللهِ ﷺ لِلزُّبَيْرِ حَقَّهُ وَكَانَ رَسُولُ اللهِ ﷺ قَبْلَ ذَلِكَ أَشَارَ عَلَى الزُّبَيْرِ بِرَأْيٍ أَرَادَ فِيهِ السَّعَةَ لَهُ وَلِلْأَنْصَارِيِّ فَلَمَّا أَحْفَظَ رَسُولَ اللهِ ﷺ الْأَنْصَارِيُّ اسْتَوْعَى لِلزُّبَيْرِ حَقَّهُ فِي صَرِيحِ الْحُكْمِ قَالَ الزُّبَيْرُ لَا أَحْسِبُ هَذِهِ الْآيَةَ أُنْزِلَتْ إِلَّا فِي ذَلِكَ فَلَا وَرَبِّكَ لَا يُؤْمِنُونَ حَتَّى يُحَكِّمُوكَ فِيمَا شَجَرَ بَيْنَهُمْ وَأَحَدُهُمَا يَزِيدُ عَلَى صَاحِبِهِ فِي الْقَصَّةِ قَالَ أَبُو عَبْدِ الرَّحْمَنِ خَالَفَهُ قُتَيْبَةُ بْنُ سَعِيدٍ  

An Ansari man quarreled with Az-Zubair in the presence of the Prophet ﷺ about the Harra Canals which were used for irrigating the date-palms. The Ansari man said to Az-Zubair, "Let the water pass' but Az-Zubair refused to do so. So, the case was brought before the Prophet ﷺ who said to Az-Zubair, "O Zubair! Irrigate (your land) and then let the water pass to your neighbor." On that the Ansari got angry and said to the Prophet, "Is it because he (i.e. Zubair) is your aunt's son?" On that the color of the face of Messenger of Allah ﷺ changed (because of anger) and he said, "O Zubair! Irrigate (your land) and then withhold the water till it reaches the walls between the pits round the trees." Zubair said, "By Allah, I think that the following verse was revealed on this occasion": "But no, by your Lord They can have No faith Until they make you judge In all disputes between them." (4.65) (Using translation from Bukhārī 2359)  

أَنَّ رَجُلًا مِنَ الْأَنْصَارِ خَاصَمَ الزُّبَيْرَ إِلَى رَسُولِ اللهِ ﷺ فِي شِرَاجِ الْحَرَّةِ الَّتِي يَسْقُونَ بِهَا النَّخْلَ فَقَالَ لِلْأَنْصَارِيِّ سَرِّحِ الْمَاءَ يَمُرُّ فَأَبَى عَلَيْهِ فَاخْتَصَمُوا عِنْدَ رَسُولِ اللهِ ﷺ فَقَالَ رَسُولُ اللهِ ﷺ لِلزُّبَيْرِ «أَسْقِ يَا زُبَيْرُ ثُمَّ أَرْسِلْ إِلَى جَارِكَ» فَغَضِبَ الْأَنْصَارِيُّ فَقَالَ يَا رَسُولَ اللهِ أَنْ كَانَ ابْنَ عَمَّتِكَ فَتَلَوَّنَ وَجْهُ نَبِيِّ اللهِ ﷺ ثُمَّ قَالَ «يَا زُبَيْرُ أَسْقِ ثُمَّ احْبِسِ الْمَاءَ حَتَّى يَرْجِعَ إِلَى الْجَدْرِ» فَقَالَ الزُّبَيْرُ وَاللهِ إِنِّي لَأَحْسِبُ هَذِهِ الْآيَةَ نَزَلَتْ فِي ذَلِكَ {فَلَا وَرَبِّكَ لَا يُؤْمِنُونَ حَتَّى يُحَكِّمُوكَ فِيمَا شَجَرَ بَيْنَهُمْ} [النساء 65]