A study of two narrations of Usama's Djaysh Event

There are two narrative quotes on the well-known event of Usama's Djaysh 1)The first century historian's narrative; 2)The Shih theologian's narrative as Shiykh-I Mufid has narrated in Al-irshad. The historians have accounted this event, through considering former and simultaneous, but Shiykh-I Mufid has analyzed and narrated it by regarding to its consequences. His analysis and explanation can be considered as a theological-functional explanation and analysis. The historians have narrated this event with a kind of oversimplification; and they havent paid enough attention to know and record the details of it; on the other hand, the content of Shiykh-I Mufid's narrative is inconsistent with prophet's spiritual and (even) political states meanwhile it is not acceptable because of not having enough interest in the former and simultaneous circumstances with this event.