محمد قطب
Safar al-Hawali wrote a book on secularism as part of his master thesis at Umm Al-Qura. This research was supervised by Muhammad Qutb, the brother of Sayyid Qutb. Here al-Hawali traced the history of the separation between the church and state and how the idea was imported to the Muslim world. In his Ph.D. research, al-Hawali made an analysis of the separation between the claim of faith and deeds of worship.