Fortress of Monotheism (in Indonesian language)

For the sake of unifying Allah — عز وجل — and affirming His worship, creation was made, and to achieve it, every worship was legislated. So, monotheism is the greatest goal, the highest aim, and the noblest purpose. Allah, the Most High, said: (And I did not create the jinn and mankind except to worship Me). And whoever reflects on the state of many today finds that this matter has been neglected by them in many aspects. Therefore, it is incumbent upon us to strive to produce such a booklet that includes some of what the scholars have written about monotheism, sincerity of religion to Allah, abandoning innovations, and new matters. The book contains 176 pages, in the Indonesian language.