A renowned academic and writer who has significantly advanced the field of Islamic studies is Dr. Saleh As-Saleh. His detailed handbook, "Hajj & Tawheed By Dr. Saleh As-Saleh" covers the Hajj journey and places an emphasis on the idea of Tawheed (monotheism) in Islam. In his book "Hajj & Tawheed," Dr. Saleh explores the meaning and customs of the yearly Hajj to the holy city of Mecca. He explains every stage of the journey in great depth, including the acts of worship, the background information, and the spiritual teachings learned along the way. Dr. Saleh clarifies the essential idea of Tawheed, which forms the basis of Islamic doctrine Hajj is to set out for Makkah to worship ALLAH by performing certain religious rights in accordance with the Prophets صلی الله علیه وآلیه وسلم sunnah. It is a time in which to call upon ALLAH to purify the self from any worship to anyone other than him. This booklet explains the basic rights of Hajj. It also notes that the tawheed of Allah requires the Muslim to follow the perfect way of worship, demonstrated by Muhammad صلی الله علیه وآلیه وسلم and is understood by the Sahaabah who were the best of mankind.
