ভূমিকা
Shiavault - a Vault of Shia Islamic Books Imam Hasan and Caliphate Selection of the Leader The researchers complain that a factual, analytical and critical study of the struggle between Imam Hasan (as) and Muawiya, as presented by history, has not yet been undertaken. Thus, a chapter on the early Islamic period remains dark, vague and unclear. A similar view has been expressed by the well known German orientalist J. Wellhausen.
While analysing the period of Imam Al-Mujtaba (as), he writes: Events are recorded with confusion and fragmentation and that it is, therefore, difficult to place certain details of the episode in precise chronological order." [^1] 1 The researchers are justified in their comment, as those trying to analyse the events during the period of Imam Hasan (as) come across many such different, confused statements about the events and contradictory narrations.
Similar variation is also observed about the leadership of the vanguard brigade. From the occurrences after reaching Maskin, it seems that the difference is quite significant. Rebuttal of another Misunderstanding Some historians have written that the command of the vanguard brigade that Imam Hasan (as) had ordered to go to Maskin in the northern Iraqi area to check the advance by Muawiya, was given to Qais b. S'ad b. Abadah Ansari. The following historians have recorded it as such: [^2] 2 Ibn.
Atham - 'Al-Futuh', Hafiz Dhahabi - 'Tarikh al-Islam-o-al-'abar, Dayar Bakri - 'Tarikh al-Khamis', Ibn. Hajar 'Asqalani - 'Al Isabah fi Tamyiz al Sahaba' Ibn. Khaldun - 'Tarikh Ibn. Khaldun' Abu ‘Ali Maskuya - 'Tajarib al Ummum' Two versions have been given in 'Tarikh al-Tabari'. According to Zuhri's narration, Ubaidullah b. Abbas, the cousin of Imam Al-Mujtaba's father (i.e. his uncle) was in command of the vanguard brigade, while according to Musa b.
Abdel Rahman's narration, the command was given to Qais b. S'ad.[^3] 3 The historian Ibn. 'Asakir too, in his well known book 'Tarikhe Madinate Damishq' mentions two different versions. According to him, only Abul Safar has mentioned the name of Qais b. S'ad as the commander of the vanguard unit, while others have mentioned Ubaidullah b.
Abbas as the commander.[^4] On the other hand, we also come across the historical records wherein it has been mentioned that though the leadership was given by Imam Al-Mujtaba (as) to Ubaidullah b. Abbas, Qais b. S'ad was appointed as his assistant and adviser.