As understanding the life of this lmam needs studying the affairs of the Omayyad and the Abbasid dynasties when Abü Abd Allah, peace be on him, lived, the attitude of these two powers towards the members of the House (ahl al- Bayt), the number of ahl at Bayt, the religious sects and schools during his lifetime, and the opinions of people about the lmamate, it is necessary for us to mention these subjects in the preface, because through them we are able to understand his political, scientific and social life, and the reason for . which he published sciences and knowledge, he summoned Muslims to adopt ethics and merits, and urged them to spread virtues secretly and keep their attribution to (ahl al - Bayt) secret. Also he prevented his followers from showing their support for them and going frequently to them openly. This is what we call dissimulation (taqiyah).

So, through this preface, the reader is aware of the lifetime of this lmani before he studies its details.


All praise is due to Allah, the Lord of the Worlds. The Beneficent, the Merciful. Master of the Day of Judgment. Thee do we serve and Thee do we beseech for help. Keep us on the right path. The path of those upon whom Thou hast bestowed favors. Not (the path) of those upon whom Thy wrath is brought down, nor of those who go astray. Surely Allah and His angels bless the Prophet; O you who believe! Call for (Divine) blessings on him and salute him with a (becoming) Salutation. peace be upon Al Yasin.

In The Name Of Allah, Most Gracious, Most Merciful

Praise be to Allah, the lord of the Worlds. Peace and blessings be upon our master Mohammed and his Household.

The rank and position of fmam Aba Abd Allah Ja. far b. Mohammed al-Sâdiq, peace and blessings be upon him, is not hidden. All Muslims, the pioneers of science, and the like, know that he was the torch of guidance and the lamp of the religion that spread during his lifetime and whose lights radiated all over the world. In the meantime the transmitters of traditions, the representatives of the science of Hadith (tradition), and the theologians of Shi. a and non- Shi. a graduated from his schools. As we are not able to know every thing about this great Islamic figure, then we will take a glance at his lifetime.

For this reason, the Foundation has printed the book of the scholar, the researcher Shaykh Mohammed al- Husayn Muzaffar, because he has briefly studied many achievements of Imam al- Sâdiq, peace be on him, such as his scientific schools, his debates, his sermons, his sayings, and those who have narrated ahadeeth on his authority from among Shiaas and non-Sha. as.

We implore Allah, the Exalted, to grant us success to publish Islamic books and offer them to the pioneers of knowledge and the theological schools, verily He is the Lord of success.