Similarly...
Similarly, adherence to the Quran and neglecting the political leadership is a matter out of the circle of reasoning. Unanimously, those who believe in Quran and disbelieve in Mohammed as a political and religious leader, are decided as disbelievers. Those who believe in Mohammed as the political leadership and neglect the Quran are, correspondingly decided as disbelievers.
Giving credence to the divine doctrine as the effective law, and Mohammed as the religious and political leader whose mission is guiding the believers through that effective law, is among the fundamental bases of faith. The political leadership, consequently, is the instituting body whose responsibility is explicating the doctrine and guiding the followers according to the rulings of that doctrine.
Like doctoring, atomics and engineering, the approaches of explicating the doctrine and guiding the followers are completely procedures of specialization. It is unfeasible to leave such missions to fancies and individual hypotheses. Qualifications of the Doctrinal Political Leadership Mohammed (peace be upon him and his family), as being the first political and religious leader of Islam, should be taken as the guide and the exemplar of that political leadership.
Those who take the position of leadership were characterized as the Prophet's successors. Hence, being the most knowledgeable, the keenest of the divine doctrine and its rulings, the most favorable and the fittest, politically and religiously, have been the qualifications of the Prophet's political and religious leadership. Our evidence is that it was God, the Elevated, Who nominated him for joining political leadership to the religious. No single Muslim can protest against this fact.
Thereupon, any political or religious leadership succeeding the Prophet should be carrying the same qualifications. Hence, the leader succeeding the Prophet should be: The most knowledgeable of the divine doctrine. The keenest to the rulings of the divine doctrine. The most favorable among the followers of that divine doctrine, and The fittest for guiding the followers.
These are positive criteria, orderly prospects and finite purposes of every individual intending but the right and disdaining humors. It is for the good of believers - in Islam - entirely that the most knowledgeable, the keenest, the most favorable and the fittest should guide them. In a like manner, it is for none's good that any unqualified individual leads the nation.