from the sermons of Imam Ali(pace be upon him ):sermon76

When the Consultative Committee (orshura ) decided to swear allegiance to A Othman, Imam Ali ibn Abu Talib (A.S) said:

You have certainly known that I am the most rightful of all others for the Caliphate. By Allah, so long as the affairs of Muslims remain intact and there is no oppression in it save on myself I shall be keeping aloof from its attractions and allurements for which you aspire.