The author has unmasked the Bareilawi cult, of Ahmed Raza Khan. This work has been abridged from the original - 'al-Bareilawiyya'. While taking great care to preserve the spirit of the original, it has been adapted to make it easier for the modern English reader to understand. In this respect appendices have been added in order to demystify important concepts such as bidah and cast light upon contemporary groups that follow Ahmad Raza's cult. The author has diligently compiled this treatise, drawing liberally from genuine Bareilawi sources. Much could have been written about this cult, but author has focussed upon the fundamental issues.