Bidaat Ka Encyclopedia By Allama Nasir Uddin Albani
This book “Bidaat ka Encyclopedia” is the Urdu translation of the Arabic book “Qamoos Al-Bidah” which was collected by Abu Ubaidah bin Hasan Al-Salman and Abu Abdullah Ahmad bin Ismail Shawkani. This Arabic book was derived from the work of Great Muhaddith Nasir uddin Albani (May Allah have mercy upon him).
In this book, various types and kinds of all the Bidaat have been mentioned which have been spread by Ulema since ages to their extreme blind followers, who perform them assuming it’s the “Islam” they are following. An excellent read on this topic.