Saudi Minister of Education Dr Abdullah Al-Obeid warned Sunday against the plots hatched by enemies of Islam to divide the Muslim world. In an address at the 18th International Conference on the Islamic Unity in Tehran, Dr Al-Obeid said diversity of the Islamic schools should be an element for unity and not for disunity. Dr Al-Obeid highlighted the significant role that could be played by Muslim scholars in unifying the Muslim ranks. 'The Muslims cannot confront the great challenges they are facing except through strict adherence to the Holy Quran and Sunnah (the Prophet's teachings).