Abu Bakr bin Muhammad bin Amr bin Hazm relates from his father that when Sayyiduna Ammar (may Allah be pleased with him) was killed, Sayyiduna Amr bin Hazm (may Allah be pleased with him) came to Sayyiduna Amr bin al-As (may Allah be pleased with him) and said: Ammar has been killed, and the Prophet (peace and blessings be upon him) had said: "O Ammar! The rebellious group will kill you." So Sayyiduna Amr (may Allah be pleased with him) stood up, the colour drained from his face. He came to Sayyiduna Mu'awiyah (may Allah be pleased with him) and said: Ammar has been killed. Sayyiduna Mu'awiyah (may Allah be pleased with him) asked: Why (does that matter)? Sayyiduna Amr (may Allah be pleased with him) said: The Prophet (peace and blessings be upon him) said: "O Ammar! The rebellious group will kill you." Sayyiduna Mu'awiyah (may Allah be pleased with him) said: You have slipped in your own urine! Did we kill him? Ali (may Allah be pleased with him) and his companions killed him, and they threw him towards us.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قتال أهل البغي / 16790