Abu Abdullah Mahmud bin Muhammad al-Haddad () is an Egyptian Islamic scholar who is credited with founding the Salafi faction known as Haddadism.

Biography Al-Haddad was born in Egypt and came to Saudi Arabia to study Salafism and preach it. However, his hardline stances on several issues led to his expulsion from Saudi Arabia.

Al-Haddad's controversial views include that Ibn Taymiyya united with the people of innovation and that the books of al-Nawawi and Ibn Hajar al-Asqalani should be burned. Saudi scholars Rabi' al-Madkhali and Abdulaziz al-Reis harshly criticized al-Haddad for these views.

See also Madkhalism Hazimism Ahmad ibn Umar al-Hazimi

Notes and references