Ahmed Raza Khan, commonly known as Aala Hazrat, Ahmed Raza Khan Barelvi, or Ahmed Rida Khan in Arabic, (14 June 1856 CE or 10 Shawwal 1272 AH – October 1921 CE or Safar 1340 AH), was an Islamic scholar, jurist, mufti, philosopher, theologian, ascetic, Sufi, poet, and mujaddid in British India. He wrote on law, religion, philosophy and the sciences, and because he mastered many subjects in both rational and religious sciences, Francis Robinson, one of the leading Western scholars of South Asian Islam, considers him to be a polymath.He was reformer in north India who wrote extensively in defense of Muhammad and popular Sufi practices and became the leader of a movement called "Ahl-i Sunnat wa Jamàat". He influenced millions of people, and today the Barelvi movement has around 200 million in the region. Source: Wikipedia (en)