Doubt Dispelling Explanation is a Sanskrit reading of Škend Gum?n?g wiz?r chapters 13th and 14th along with explanations of the linguistic peculiarities. Škend Gum?n?g wiz?r is a Zoroastrian apologetic book written by Mard?n Farrox in the ninth century. The book carries eloquent issues and has been translated into English by E. W. West in 1882. In the opening pages of the book the author declares that I, Mard?n Farrox Ohrmazd d?d, wrote this book, having noticed on many occasions the variety of the cults, religions and teachings. And, since I was young, I sought and examined the truth: that is the reason of my voyages to the lands overseas.