Hassanids in Hashemiye Prison; reviewing causes, real numbers of prisoners and casualties

The power struggle between Allavid and Abbasid is a well-known subject when studying the transition after of the second century. It is argued here that one of the most important symbols of this challenge in comparison of Mansur and Muhammad Ibn Abdollah, that is different dimensions of capturing of Hassanid in Hashemie`s prison needs more scholarly attention. The purpose of this article is to study the reasons of imprisoning of Hassanid with an analytic-descriptive approach and reviewing the narratives. It aims to present a more exact report of imprisoned Hassanids with a focus on the difference between their numbers and names.This study aims to show that Mansur`s disappointment of finding of Muhammad and Ibrahim, sons of Abdollah Mahz, and disappointment of their allegiance, obliged him to take them as hostages so as to impose on them an emotional and unplanned action while applying emotional pressure. This action ended in the removing of the main protectors of Muhammad`s action and caused the death of nine of prisoners in the period of imprisonment.