Shaykh Dr. Muhammad ibn 'Abd al-Rahman al-Khumayyis is a Saudi Islamic scholar, researcher, and author known for his works on Islamic creed ('Aqeedah), Tawheed, and comparative studies of Islamic theological schools. He earned advanced academic qualifications in Islamic studies and has authored numerous books examining the beliefs of the early Muslim scholars and the four Sunni madhhabs. His writings are widely used by students of knowledge for their focus on authentic sources from the Qur'an, Sunnah, and the understanding of the Salaf.