Between Salafism and Traditionalism: The Case of Nasir al-Din al-Albani

What is the movement called 'Salafism' and who is one of its main proponents? This lecture explains the concept of Madhabs (Schools of Islamic law), also called 'Traditionalism' which through the centuries developed in response to changing contexts and landscapes, vis-a-vis Salafism which claims to have a more direct/puritanical approach to Islam.  How did these contrasting sides critiqued one another and which side realistically applies the teachings of Islam?