This book, which is written by a well known scholar, a graduate of the Sorbonne, who switched from one Muslim school of thought to another, attempts to prove that the Muslims who truly follow the authentic Sunnah of the Prophet of Islam are actually none other than those referred to as the Shi'as. It details how these Shi'as (or Shi'ites) learn this Sunnah from the closest people to the Prophet of Islam: his immediate family members. It traces the history of the Muslims of the first Islamic century and how they split into two camps, thus setting the foundations for both of these major sects. It also deals with the persecution to which the immediate family members of the Prophet of Islam were subjected and the politicians who played a major role in widening the gap between the followers of this sect and those of that. As for its style, the author restricts himself to quoting major authentic Sunni works to prove his point, relying on an in-depth study of the Islamic history in general and of that of the first century in particular. Many controversial themes are discussed in this book, including that of the infallibility of the Prophet of Islam and of the Twelve Imams who descended from Ali and Fatima, cousin and daughter of the Prophet respectively. Finally, the book concludes with an Appendix containing an Arabic poem in one thousand lines in praise of Commander of the Faithful Ali composed by an Iraqi poet for the Arabic speaking readers.