Critical study of K̲h̲ilāfat va mulūkiyyat par iʻtarāz̤āt kā tajziyah written by Malik G̲h̲ulām ʻAlī and K̲h̲ilāfat va mulūkiyyat written by Syed Abul ʻAlā Maudoodi on K̲h̲ilāfat on Caliphat with special reference to Caliph Muʻaviyah d. 680