Kitaab Al-Fiqheeh wa Al-Mutafaqqih one of the best books in Islaamic law and its science written by Al-Imaam Ahmad bin Ali bin Thaabit also known as Al-Khateeb Al-Baghdadi Abu Bakr (Rahimahullaah ta'alaa) Printed by dar Ibn Jowzi (KSA) in one huge volume on yellow paper the book consist of 822 pages.