In trade and business two Islamic prohibitions are paramount. One is riba, the other is gharar or uncertainty. While most people know something about the former, the latter remains generally ignored. This is a first ever book in Urdu on this important topic. It grew from a paper the author had written as part of his studies at Darul Uloom Karachi, where he now teaches. An In depth scholarly treatment that refers to both classical as well as modern resources (in English, Arabic, and Urdu) on the subject. A must-read for those interested in Islamic Economics and finance.