Imam Jafar-as-Sadiq(A.S) the Sixth Holy Imam of the Shi'ites was the "Founder of the First Grand Islamic University. In this university the Holy Imam(A.S.) taught various branches of sciences and more than four thousand students were attracted towards him from far-off places. Imam Jafar-as-Sadiq(A.S.) strengthened the foundations of Islamic Jurisprudence and he is also considered as "The Founder of the Imamia School of Jurisprudence".
Mansur Dawaniqi, the Abbasid caliph martyred Imam Jafar-as-Sadiq(A.S.) through poisoning on 25th Shawwal 148 A.H. and his holy body was laid to rest in the Jannat-al-Baqi cemetery in the holy city of Madinah.
On this Sad and Mournful occasion we express our Heartfelt Condolences and Deepest Grief to all the Muslims and the Lovers of the Holy Ahlul Bayt(A.S.).
source : www.imamreza.net