Sunan At-Tirmidhi

Sa'eed bin Jumhan narrated:""Safinah narrated to me, he said: 'The Messenger of Allah(s.a.w) said: ""Al-Khilafah will be in my Ummah for thirty years, then there will be monarchy after that.""' Then Safinah said to me: 'Count the Khilafah of Abu Bakr,' then he said: 'Count the Khilafah of 'Umar and the Khilafah of 'Uthman.' Then he said to me: 'Count the Khilafah of 'Ali.""' He said: ""So we found that they add up to thirty years."" Sa'eed said: ""I said to him: 'Banu Umaiyyah claim that the Khilafah is among them.' He said: 'Banu Az-Zarqa' lie, rather they are a monarchy, among the worst of monarchies