When the Prophet (peace and blessings be upon him) was on the expedition of Tabuk, Jibril (peace be upon him) came to him (peace and blessings be upon him) and said: "O Muhammad, would you like to go to the funeral of Mu'awiyah bin Mu'awiyah al-Muzani (may Allah be pleased with him)?" He (peace and blessings be upon him) said: "Yes." So Jibril (peace be upon him) gestured with his hand like this, and moved the mountains and hillocks aside for him. So the Messenger of Allah (peace and blessings be upon him) went walking, and with him (peace and blessings be upon him) was Jibril (peace be upon him), and with Jibril (peace be upon him) were seventy thousand angels, and he (peace and blessings be upon him) led the funeral prayer over Mu'awiyah bin Mu'awiyah (may Allah be pleased with him). The Messenger of Allah (peace and blessings be upon him) asked Jibril (peace be upon him): "By what did Mu'awiyah attain this rank?" He said: "By reciting the surah 'Qul huwa Allahu ahad' abundantly; he used to recite it standing, sitting, lying down and walking. That is why he attained this rank."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17090