Historically, Al-Azhar had a membership that represented diverse opinions within Islam. The theological schools of Al-Ashari and Al-Maturidi were both represented. It has a long tradition of teaching all four schools of Sunni Islamic jurisprudence (Hanafi, Maliki, Shafi, and Hanbali). The chief mufti of each school of thought acted as the dean, responsible for the teachers and students in that group. During the time of the Ottomans, the Hanafi dean came to hold a position as "primus inter pares". It also had membership from the seven main Sufi orders. Al-Azhar has had an antagonistic relationship with Wahhabism. According to a 2011 report issued by the Carnegie Endowment for International Peace, Al Azhar is strongly Sufi in character: