ভূমিকা
Shiavault - a Vault of Shia Islamic Books The Conception of the Sahaba's Ultimate Decency and the Political Authority in Islam Chapter 6 — the Authority After the Prophet Shia’s Opinion A. Requisiteness of Authority They say: It is untrue that the Prophet (peace be upon him and his family) left his nation without nominating a leader and an authority, since these two matters are indispensable and rudimentary for the nation every time.
The saying of the Prophet's leaving his nation without a leader and an authority contravenes perfection and completion of the religion and the divine grace. It also opposes the thorough explication asserted by the Holy Quran. How should the Prophet explicate a minute affair, such as the proper way of urination, while he neglects a fundamental affair which is leadership of the nation?
Similarly, leaving the nation without a leader and an authority is a matter contradicting the Prophet's mercy and care for his people. According to the Holy Quran, God has thrown in his Apostle's heart mercy and care for this nation. Who should represent the Prophet in his political and religious duties? Who should explain the Quran? Who should show limits of circle of legality? Who should be the saving ship of this nation? Who should be guiding people to the right?
Who should be the security of this nation? These functions are elements of specialization. Like medicine, engineering or atomics, these elements are in need of an individual specialized. None other than the most favorable, the fittest and the most familiar with questions of the doctrine, who should join political and religious leadership, can make out these concerns intensively. These qualifications are identified by God alone.
Legally and logically, it is impractical for God to leave this concern to people's fancies. They are within the fundamental principles of Islam and the basic prerequisites of the divine solicitation, government and nation.
The greatest evidence on essentiality of this question is that the deniers who had traversed the fact that the Prophet himself had clarified the succeeding leadership, did their best to establish a positive leadership that was stabilized for the predominant power after the great massacres, suffered by the Islamic nation, committed for the sake of uniting the nation by force under authority of that strongest ruler.