Musannaf Ibn Abi Shayba 27:323

Qabisah narrated to us, from Hammad ibn Salamah, from Ali ibn Zayd, from Abd al-Rahman ibn Abi Bakrah, from his father, who said: We arrived as a delegation to Mu'awiyah. He said: "He was not amazed by any delegation as he was amazed by us." He said: "O Abu Bakrah, narrate to me something you heard from the Messenger of Allah (ﷺ)." He said: "I heard the Messenger of Allah (ﷺ) say—and he used to be pleased by dreams and would ask about them—I heard him say: 'I saw a scale descend from the sky. I was weighed in it against Abu Bakr, and I outweighed Abu Bakr. Then Abu Bakr and Umar were weighed, and Abu Bakr outweighed Umar. Then Umar and Uthman were weighed, and Umar outweighed Uthman.' Then the scale was raised to the sky. The Messenger of Allah (ﷺ) then said: 'Prophethood and Caliphate, then Allah gives sovereignty to whom He wills.'" He said: "Then he pushed us by our necks and sent us out."