The Prophet also displayed great interest in the problem of...
The Prophet also displayed great interest in the problem of succession and never failed to appoint a successor when necessary. Whenever he left Medina he would appoint a governor in his own place. Even when he migrated from Mecca to Medina and there was as yet no idea as to what would occur, in order to have his personal affairs managed in Mecca for those few days and to give back to people what had been entrusted to him, he appointed Ali - may peace be upon him - as his successor.
In the same way, after his death Ali was his successor in matters concerning his debts and personal affairs. The Shi'ites claim that for this very reason it is not conceivable that the Prophet should have died without appointing someone as his successor, without having selected a guide and leader to direct the affairs of Muslims and to turn the wheels of Islamic society.
Man's primordial nature does not doubt the importance and value of the fact that the creation of a society depends on a set of common regulations and customs which are accepted in practice by the majority of the groups in that society, and that the existence and continuation of that society depend upon a just government which agrees to carry out these regulations completely. Any one who possesses intelligence does not neglect of forget this fact.
At the same time one can doubt neither the breadth and detailed nature of the Islamic Shari'ah, nor the importance and value the Prophet considered it to possess, so that he made many sacrifices for its application and preservation. Nor can one debate about the mental genius, perfection of intelligence, perspicacity of vision or power of deliberation of the Prophet (beside the fact that this is affirmed through revelation and prophecy).
According to established traditions in both Sunni and Shi'ite collections of hadith (in the chapter on temptations and seditions and others) transmitted from the Prophet, the Prophet foretold seditions and tribulations which would entangle Islamic society after his death, and the forms of corruption which would penetrate the body of Islam, and later worldly rulers who would sacrifice this pure religion for their own impure, unscrupulous ends.
How is it possible that the Prophet should not neglect to speak of the details of events and trials of years or even thousands of years after him, and yet would neglect the condition that had to be brought into being most urgently after his death?