Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) heard the voices of two men who were reciting this (verse):
(In the tawil metre)
"There will always be some hawari (devoted helper) whose bones remain visible (on the battlefield); war has kept him from being shrouded and buried."
He (peace and blessings be upon him) asked: Who are these two? It was said: Mu'awiyah and Amr bin al-As. So he (peace and blessings be upon him) said: "O Allah, cast them headlong into trial, and drive them forcefully towards Hell."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10924