 Kharijites reject the doctrine of infallibility for the leader of the Muslim community, in contrast to Shi'a but in agreement with Sunnis.Modern-day Islamic scholar Abul Ala Maududi wrote an analysis of Kharijite beliefs, marking a number of differences between Kharijism and Sunni Islam.The Kharijites believed that the act of sinning is analogous to Kufr (disbelief) and that every grave sinner was regarded as a Kāfir (disbeliever) unless he repents.