How then could he leave the administration...
How then could he leave the administration, according to Shariat rules of all the Muslims of the world till Qiyamat (without appointing an Imam)? Fifth argument The office of Imamate is like Prophethood because both have to do with an administration and governance and are concerned with all responsible elements in all the worldly and otherworldly matters.
It is not possible for the people to recognize such a person who may qualify for this office, (because), even if it is their unanimous choice about a person that selection will be according only to their defective mind (reasoning) and wrong selfishness (self-interest) which cannot be in accordance with an overall common interest and the divine wisdom. Everyone will propose the name of only that person who will be, in his opinion, useful for him or his community.
Of course such unanimity is possible under pressure such as in the government of tyrant, oppressor kings and dictators. It cannot be Imamate (leadership) of the general public and so not a religious rule. Again, if the masses can, according to divine strategy, select an Imam they can also select a messenger (prophet), which is wrong unanimously.
It is worth noting that, suppose, at some place, a king dismisses the governor but does not appoint anybody else in that post or if the administrator of some place goes out of station but appoints no one in charge of his office to take care of the public but leaves the matter to the choice of the people, then, certainly those who do not believe that an Imam must be appointed by Allah, will criticize the above mentioned governor or ruler severely.
How strange that those who find fault with the above-mentioned situation think that it is all right in the case of Allah and the Messenger and say that the Holy Prophet (S) passed away from the world but he did not appoint anyone as his successor but left such selection to the public. Sixth argument Take for granted that the Ummat (community) gives up all selfishness and desires and selects an Imam after a serious and sincere thought.
But since to err is human it is possible that someone makes some mistake in selection and they may leave aside a proper person and select an unworthy fellow, as often happens in kingdoms and dictatorships and general elections wherein they elect a person for a period, considering him quite fit but subsequently their choice proves to be erroneous.