Criticism of the criteria of the Shia and Sunni in the determination Imam and Caliph of the Messenger of God, peace be upon him and his family

After a prophet was sent among the Muslims and it became obligatory for the Muslims to obey him, and after the end of the Prophet›s mission due to the end of his life, the community cannot be left without an Imam and a Caliph, and on the other hand, the Caliph should also be fully knowledgeable. The rulings and answers to the questions of Muslims, and knowing that person is also an important issue, if we make a mistake in choosing it, the end result is nothing but destruction. Because the caliph of God›s Messenger has all the duties of a messenger except receiving and communicating revelation. On the other hand, the successor of the Prophet, who is obligatory to obey, is also obligatory to obey. Therefore, it is obligatory for every Muslim to know the Imam of his time and to follow him. To know the Imam, he must refer to the criteria and methods that are expressed by the intellect and Sunnah of the Prophet. Now, if a group makes a mistake in choosing the criteria, it has not reached the Imam›s knowledge and is in error. Therefore, the criteria for choosing the caliph should be checked so that the society does not get misled. Therefore, this article aims to examine the correct criteria for choosing a caliph with a library method and also by using descriptive and analytical topics. The result of this research is that it is the only school of Ahl al-Bayt (peace be upon them). Because he has used the right and correct criteria to choose the imam and did not allocate the position of installing the imam to the people and considers it a divine position.