Sayyiduna Sahl bin Sa’d (may Allah be pleased with him) narrates that due to a disagreement from the time of ignorance, there was a bitter exchange of words between two Ansari tribes, to the extent that Satan intervened (i.e., they started fighting). And in another narration: to the extent that they grabbed each other. When the Prophet Muhammad (peace and blessings be upon him) found out, he came to reconcile them. He was delayed for a while (until the prayer time), so Sayyiduna Bilal (may Allah be pleased with him) gave the call to prayer (adhan). The Prophet (peace be upon him) was further delayed and did not come, so Sayyiduna Bilal (may Allah be pleased with him) gave the iqamah, and Sayyiduna Abu Bakr (may Allah be pleased with him) stepped forward (to lead the prayer) and began the leadership. Then the Messenger of Allah (peace and blessings be upon him) arrived, and as he passed through the rows, he stood in the first row. Sayyiduna Abu Bakr (may Allah be pleased with him) would not usually turn his attention here and there during the prayer, but when people started clapping, and when he heard the sound of clapping, he turned and saw that the Messenger of Allah (peace and blessings be upon him) was present. The Messenger of Allah (peace and blessings be upon him) signaled him to remain standing in his place, but Sayyiduna Abu Bakr (may Allah be pleased with him) raised his head towards the sky and stepped back on his heels. The Prophet (peace and blessings be upon him) moved forward, and after completing the prayer, asked:“Abu Bakr! Why did you not continue leading the prayer?”He replied:“Allah does not want the son of Abu Quhafa to stand in front of His Prophet (peace and blessings be upon him).”