Muhammad al Warraq

Abu Isa al-Warraq, full name Abū ʿĪsā Muḥammad ibn Hārūn al-Warrāq, was a 9th-century Arab scholar. He is cited as a critic of Christianity but also of Islam. He was a mentor and friend of scholar Ibn al-Rawandi in whose work The Book of the Emerald he appears.