Musnad Abu Ya'la al-Mawsili 232:2

Ishaq bin Abi Isra'il and Ibrahim bin Muhammad bin 'Ar'arah narrated to us—and his [Ibrahim's] copy—they said: 'Abd al-Razzaq narrated to us, Ma'mar informed us, from Ibn Tawus, from Abu Bakr bin Muhammad bin 'Amr bin Hazm, from his father, who said: 'Amr bin Hazm entered upon 'Amr bin al-'As and said: "Ammar has been killed, and the Messenger of Allah (ﷺ) had said: 'The rebellious group will kill him.'" So 'Amr entered upon Mu'awiyah and said: "Ammar has been killed." Mu'awiyah said: "Ammar has been killed? So what?" He said: "I heard the Messenger of Allah (ﷺ) say: 'The rebellious group will kill him.'" He [Mu'awiyah] said: "You have slipped into your own urine! Or did we kill him? It was only 'Ali and his companions who killed him."