It is narrated from Muhammad bin Amr bin Hazm, he says: When Sayyiduna Ammar bin Yasir (may Allah be pleased with him) was martyred, Sayyiduna Amr bin Hazm (may Allah be pleased with him) went to Sayyiduna Amr bin Aas (may Allah be pleased with him) and informed him that Sayyiduna Ammar (may Allah be pleased with him) had been martyred, while the Messenger of Allah (peace and blessings be upon him) had said that a rebellious group would kill Ammar. Hearing this, Sayyiduna Amr bin Aas (may Allah be pleased with him) became anxious and, reciting "Indeed we belong to Allah, and indeed to Him we will return," went to Sayyiduna Muawiyah (may Allah be pleased with him). Seeing his condition, Sayyiduna Muawiyah (may Allah be pleased with him) asked: What has happened to you? He informed him that Sayyiduna Ammar (may Allah be pleased with him) had been martyred. Sayyiduna Muawiyah (may Allah be pleased with him) said: Ammar has been killed, so what? Sayyiduna Amr (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say that a rebellious group would kill Ammar. Hearing this, Sayyiduna Muawiyah (may Allah be pleased with him) said to him: Slip in your urine! Did we kill him? Rather, Ali (may Allah be pleased with him) and his companions caused him to be killed; they brought him and placed him among our spears or swords.