ভূমিকা
Shiavault - a Vault of Shia Islamic Books Al-serat (a Journal of Islamic Studies) V 'tahdhib Al-ahkam' and 'al-istibsar' By Al-tusi Dr. I. K. A. Howard Al-Serat, Vol. 2 (1976), No. 2 The Author Shaikh al-ta'ifa (the teacher of the community) Abu Ja'far Muhammad b. al-Hasan b. 'Ali b. al-Hasan al-Tusi was born in Tus in Iran in the year 385 of the Islamic era. His career marks the climax of a very great period in Shi'ite Islamic scholarship and learning.
It was during this period that Shi'ite scholars were without rivals in the Islamic world. Al-Shaikh al-Tusi's teachers included al-Shaikh al-Mufid, and the two brothers, members of Ahl al-bait and both outstanding scholars, al-Sharif al-Murtada and al-Sharif al-Radi.
This period of great public Shi'ite Islamic scholarship had begun with al-Kulaini (died 328/9 A.H.), whose collection of traditions, al-Kafi, is the first of the four major works of Shi'ite Islamic traditions.[^1] It was then continued with al-Shaikh al-Saduq lbn Babawaih (died 381 A.H.); his great collection of traditions, Man la yahduruh al-faqih, is the second of the major works of traditions.[^2] The remaining two major collections of traditions were compiled by al-Shaikh al-Tusi and they are Tahdhib al-ahkam fi sharh al-munqi' a[^3] and al-Istibsar fima 'khtalaf min al-akhbar.[^4] Al-Shaikh al-Tusi grew up in Tus and began his studies there.
In 408 A.H. he left Tus to study in Baghdad. There he first studied under al-Shaikh al-Mufid, who died in 413 A.H. Leadership of the Shi'ite scholars then fell to al-Sharif al-Murtada. The latter remained in this position until his death in 436 A.H. During this time al-Shaikh al-Tusi was closely associated with al-Sharif al-Murtada. His vast scholarship and learning made him a natural successor of al-Sharif al-Murtada as the leading spokesman of Shi'ite Islam.
So impressive was his learning that the Abbasid caliph, al-Qadir bi-'llah, attended his lectures and sought to honour him. In the closing years of al-Shaikh al-Tusi's life the political situation in Baghdad and the domains of the Abbasid caliphate was in turmoil. The Saljuqids fiercely anti-Shi'ite, were gaining commanding power in the centre of the Islamic Empire at the expense of the Buyids who had always seemed tolerant to Shi'ite views.
In 447 Tughril-bek the leaders of the Saljuqids entered Baghdad. At this time many of the 'ulama' in Baghdad, both Sunni and Shi'ite were killed.