Wahhabi (Arabic: Al-Wahhābīyya‎ الوهابية) or Wahhabism is a sect attributed to Abd-al-Wahhab, an 18th century scholar from what is today Saudi Arabia. He advocated a process of purifiying Islam from what he considered (based on his own views and understanding of Islam) innovations in Islam (Bidah). He believed that those who practice innovation in Islam are Kafir. The word Kafir comes from the Arabic noun Takfeer (declaring that a person is Kafir). Such declaration by the Wahhabis has many potential consequences.