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 Allah's Messenger (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)
Sahih al-Bukhari Book 42, Hadith 8
← Previous Hadith Allah's Messenger (ﷺ) said, "There are three persons whom Allah will not look at on the Day of Resurrection, nor will he purify them and theirs shall be a severe punishment. They are: -1. A man possessed superfluous water, on a way and he withheld it from travelers. -2. A man who gave a pledge of allegiance to a ruler and he gave it only for worldly benefits. If the ruler gives him something he gets satisfied, and if the ruler withholds something from him, he gets dissatisfied. -3. And man displayed his goods for sale after the `Asr prayer and he said, 'By Allah, except Whom None has the right to be worshipped, I have been given so much for my goods,' and somebody believes him (and buys them). The Prophet (ﷺ) then recited: "Verily! Those who purchase a little gain at the cost of Allah's Covenant and their oaths." (3.77)

Sahih al-Bukhari Book 42, Hadith 7 Next Hadith → When a man from the Ansar quarreled with Az-Zubair, the Prophet (ﷺ) said, "O Zubair! Irrigate (your land) first and then let the water flow (to the land of the others)." "On that the Ansari said, (to the Prophet), "It is because he is your aunt's son." On that the Prophet (ﷺ) said, "O Zubair! Irrigate till the water reaches the walls between the pits around the trees and then stop (i.e. let the water go to the other's land)." I think the following verse was revealed concerning this event: "But no, by your Lord They can have No faith Until they make you judge In all disputes between them." (4.65)

Sahih al-Bukhari Book 42, Hadith 9