This work, Belief and Islam, originally was written in Persian under the title I’tiqâd-nâma by Hadrât Mawlânâ Khâlid al-Baghdâdî, a profound ‘âlim of Islam and a specialist in ma’ârif of tasawwuf. Hâji Faydullah Effendi of Kemah, a khalîfa of great walî Mavlânâ Mahmûd Sâhib, the brother of the author, translated the book into Turkish and named it Farâid-ul-fawâid which was printed in Istanbul in 1312 A.H.. Our bookstore had it translated again from the Persian original into Turkish and, some explanations and three chapters, published it with the title Imân ve Islâm in 1966. German, French and Arabic versions are also published by our bookstore. This book, explains five fundamentals of Islam, six fundamentals of îmân and the contemporary information about the matter and refutes those who are against Islam and those who are lâ-madbhabî.
At the beginning of the book (The Blessed) superiority of Ashâb of our prophet, Muhammad ´alayhissalâm, is explained along with how unjust and ignorant are those who defame Ashâb-ı-kirâm. Besides, the meaning of ijtihâd is explained.
In the part of cautioning, an answer is given to the book (Hüsniyye) written by an enemy of Islam. In another part, biographies of great savants of Islam - hadrat Imâm-ı Rabbâni and hadrat Sayyed Abdülhakîm-ı Arvâsi - are explained. In the part Two Apples of the Eye of Muslims superiority of hadrat Abû Bakr and hadrat Omar is explained; in the part The First Fitna in Islam events between Ashâb-ı-kirâm are explained beautifully from the pen of hadrat Imâm-ı Rabbâni Ahmad Fârûkî Sarhandi who explains that to love all of Ashâb-ı-kirâm is a fundamental condition of being Ahl-i-sunnat.