Ahkam e Tijarat aur Lain Dain K Masail written by Maulana Abdul Rehman Keelani and research and review by Abu Al Hassan Mubashar Ahmed. Islamic Urdu Book PDF free download. This is Islamic rule in Trade and Business. The business of any kind matter of mutual consideration; affair; dealing. Specifically. The act or business of exchanging commodities by barter, or by buying and selling for money, commerce in Islamic or Quranic way. This is a Islamic Urdu book for all Muslim Trader and businessmen.