al-Sanussi, etc. have popularised Ibn Taymiyya's teachings in their quest for tajdid and religious purity.

According to author Juan Eduardo Campo and other scholars, "islah" is used most commonly today in Arabic with respect to the idea of reform, although this usage was not widespread until the modern reform movements of the 19th and 20th centuries; scholars like Muhammad Abduh (1849-1905), Rashid Rida(1865-1935), a prominent