Taqwiyat ul Iman Strengthening of the Faith By Shah Ismail Shaheed In this book, Shah Ismail Shaheed has gathered under different topics all the horrible blunders of faith and practices whcih are contrary to the teachings of Islamic Monotheism, for instance, committing an act of shirk(Associating partners to Allah) in terms of Knowledge, regulating the affairs of the universe, habits, practices and Shirk in worshipping. Hence Taqwiyat ul Iman has become an authentic and unique book on the subject of Tauhid. The subject matter is tauhid (The oneness of Allah), which is the foundation and the basis of religion. Shah Ismail has made only the Quran and the Sunnah, the orbit of his discussion just like the righteous scholars. He refers to the Quranic Verses and Ahadith and interprets them in a very simple and comprihensible style and brings to light the true status of all the unlawful customs and rituals, which are commonly practiced in the society and are detrimental to the faith of Tauhid (Islamic Monotheism).