The prophecy of immersion with the sons of age is a huge author located in about a thousand large pages written by Shihab Al -Din Ahmed bin Ali bin Muhammad bin Ali bin Mahmoud bin Ahmed Ibn Hajar Al -Asqalani, where he follows the system of yearnings, months and days in writing incidents, then follows the incidents of each year with notables. He elaborated on mentioning what is related to Egypt from these incidents, and it deals with the events that occurred between the year (773-850). Al -Hafiz Ibn Hajar said, speaking about his book: "This is a comment in which the incidents of the time that I have realized since my birth since my birth in the year seventy and seven hundred and so on detailed every year the conditions of states about the deaths of the notables, based on the narrators of the hadith, especially those who met it or authorized me, and most of what I have seen in it or I grabbed him of those who returned to him or found him in a handwriting of my sheikhs and my companions.