Sayyidina Safinah (RA) reported that Allah’s Messenger (SAW) said, “The Khilafah (Caliphate) will last among my ummah for thirty years. Then there will be kingdom after that.” Thereafter, Safinah said, “Count the khilafah of Abu bakr.” Then he said, “And of Umar (RA) andUthman, and count the Khilafah of Ali . We will find the total to be thirty years. Saeed said that he told him that the Banu Umayyah imagined that the Khilafah rested with them. He said, The Banu Zarqa lie. Rather, they were kings, the worst of kings.
[Ahmed 21978]