Pofessor of Islamic Studies at the University of Alicante, Spain

al-Šayj al-adq is a key figure to understand the theological development of the a; he carried out a remarkable propagandistic task under the Buyid dynasty and played an important role in the process of systematisation of the fiqh imm as the last representative of the Qom school, apart from being the compiler of the Kitb Bilawhar wa Bsf.