Shaykh Muhammad Nasir al-Din al-Albani was undoubtedly one of the most influential Islamic scholars of the 20th century. His work in the field of Hadith brought renewed attention to the sciences of authentication, classification, and verification. At a time when many parts of the Muslim world had shifted away from primary source study, Shaykh al-Albani emphasized the importance of returning to the Qur’an and the authentic Sunnah, sparking a revival that reached well beyond his immediate circles.