The Islamic Khilafah is the way of ruling the Islamic Ummah after the death of the prophet (S.A.W.). The Islamic Khilafah can be rightly guided, i.e., it is according to the prophet's method. The rightly-guided Islamic Khilafah was established at the times of the rightly-guided Khalifahs after the prophet (S.A.W.) (Abu Bakr, Omar, Othman, Ali, and another Khalifah who is frequently mentioned among the rightly-guided Khalifahs; Omar Bin Abdul-Aziz) (R.A.) These Khalifahs were rightly called "the rightly-guided Khalifahs" because one of their unique situation was that they were chosen by the Ummah to rule.