Amman Message
During the Middle Ages, the Mamluk Sultanate in Egypt delineated the acceptable Sunni schools as only Hanafi, Maliki, Shafi'i and Hanbali, excluding the Ẓāhirī school. The Ottoman Empire later reaffirmed the official status of four schools as a reaction to the Shiite character of their ideological and political archrival, the Persian Safavids, though former Prime Minister of Sudan Al-Sadiq al-Mahdi, as well as the Amman Message issued by King Abdullah II of Jordan, recognize the Ẓāhirī and keep the number of Sunni schools at five.