Analysis of reports of the presence of Imam Hassan and Hussein in the conquests of northern Iran

After the death of the Prophet of God, one of the actions of the Muslim Arabs was to invade other lands, for various reasons and purposes, which is mentioned in the works of historians as conquests. Most of the existing accounts of the conquest of the lands have been compiled by historians of the Iraqi School of Journalism in books such as Tarikh Tabari and Fatooha al-Boldan al-Belazori. One of the topics mentioned in these works is the presence of the sons of Ali ibn Abi Talib in the conquests in Gorgan and Tabarestan. Regardless of its accuracy, this news has been repeated in subsequent works to the extent that it has undergone unsubstantiated additions and even a means to destroy the image of Islam and Shia by the opposition. The main issue of this research is the validity of reports based on the presence of Imam Hassan and Hussein in the conquests. It seems that the writers of the first centuries did not pay attention to the accuracy of the reports and it is not clear what their reasons were for publishing the reports. Authors who have repeated this news in the following centuries have also lacked a realistic approach. The present study has paid attention to the reports in the first sources and its reflection in the later works with a descriptive-analytical method and with a critical look.