Al-Ghazali on Intention, Sincerity and Truthfulness : Kitab al-niyya wa’l-ikhlas wa’l-sidq, Paperback by Al-ghazali, Abu Hamid; Shaker, Anthony F. (TRN), ISBN 1911141341, ISBN-13 9781911141341, Brand New, Free shipping in the US Al-Ghazali on Intention, Sincerity & Truthfulness is the thirty-seventh chapter of the Revival of the Religious Sciences. It deals with the very important subjects of intention, sincerity and truthfulness which are of crucial significance to Islam and all ethical systems.