Islamic Beliefs: A Brief Introduction to the ‘Aqeedah of Ahl as-Sunnah wal-Jamâ‘ah by Abdullâh A. Hamid al-Athari It is essential for Muslims to monitor their beliefs and their approach to Islam, so that they may be certain that they are following the path of the Prophet (peace be upon him) and the early generation of pious Muslims (the salaf). This book touches on all the main points of Islamic belief.