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.'"