Since David, peace be upon him, in the meaning of his name to him, resembled the sons of Adam to Adam in the meaning of his name to him, God declared his caliphate in the Qur’an on earth, just as he declared the caliphate of Adam on earth. The letters of Adam are not connected to each other, and the letters of David are like that, except that Adam made a difference between him and David. With the letter meem, which accepts a priori and a posteriori connection, so God brought it another so that no letter other than it would connect to it, and He made his heart one of the six letters that do not accept a posteriori connection, so David took from Adam two-thirds of his position in names, and Muhammad, may God bless him and grant him peace, also took two-thirds of it, which is the meem and the dal, except that Muhammad It is connected in its entirety, and the letter that does not accept remote connection is made another so that it is connected to it and is not connected to anything af