- Thalaathatul-Usool (The Three Fundamental Principles) by Sheikh Salih al Uthaymeen. This is an explanation of the booklet Thalaathatul Usool by Sheikh Abdul-Wahhab. The three principles are based on three questions that will be asked in our graves.
- Kitab at-Tawheed (English version) is the commentary of Shaykh Abd Al-Rahman bin Nasir al-Sadi on Shaykh Muhammad Abd al-Wahhab’s book. This commentary, al-Qawl al-Sadid, is brief but concise, bringing helpful points to the reader regarding these important discussions in the subject of Tawhid and Shirk.