Sayyiduna Zubair (may Allah be pleased with him) used to narrate that once he had a dispute with an Ansari companion (may Allah be pleased with him)—who was among the participants of the Battle of Badr—regarding the water channel from which both of them irrigated their respective fields, in the presence of the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) ended the matter by saying: "Zubair! Water your field first, then leave the water for your neighbor." The Ansari was displeased at this and said, "O Messenger of Allah! Is it because he is your cousin that you are giving this decision?" At this, the face of the Prophet (peace and blessings be upon him) changed color, and he said to Sayyiduna Zubair (may Allah be pleased with him): "Now water your field and withhold the water until it reaches the embankment." Thus, the Prophet (peace and blessings be upon him) gave Sayyiduna Zubair (may Allah be pleased with him) his full right, whereas previously the Prophet (peace and blessings be upon him) had advised Sayyiduna Zubair (may Allah be pleased with him) in a way that allowed room and leniency for both him and the Ansari. But when the Ansari expressed his reservations before the Prophet (peace and blessings be upon him), the Prophet (peace and blessings be upon him) gave a clear ruling and granted Sayyiduna Zubair (may Allah be pleased with him) his full right. Sayyiduna Zubair (may Allah be pleased with him) says: By Allah! I believe that the following verse was revealed regarding this incident: «﴿فَلَا وَرَبِّكَ لَا يُؤْمِنُونَ حَتَّى يُحَكِّمُوكَ فِيمَا شَجَرَ بَيْنَهُمْ ثُمَّ لَا يَجِدُوا فِي أَنْفُسِهِمْ حَرَجًا مِمَّا قَضَيْتَ وَيُسَلِّمُوا تَسْلِيمًا﴾ [النساء: 65] » "But no, by your Lord, they will not (truly) believe until they make you (O Muhammad) judge in all disputes between them, then find in themselves no resistance against your decisions, and accept them with full submission."