The Basic Law of GovernanceLưu trữ 2014-03-23 tại Wayback Machine (Chapter one, Article one), saudiembassy.net, "The Kingdom of Saudi Arabia is a sovereign Arab Islamic State. Its religion is Islam. Its constitution is Almighty God's Book, The Holy Qur'an, and the Sunna (Traditions) of the Prophet (PBUH). Arabic is the language of the Kingdom. The City of Riyadh is the capital."
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Iran - Constitution (Article 12), unibe.ch, "The official religion of Iran is Islam and the Twelver Ja'fari school,..."
The Basic Law of GovernanceLưu trữ 2014-03-23 tại Wayback Machine (Chapter one, Article one), saudiembassy.net, "The Kingdom of Saudi Arabia is a sovereign Arab Islamic State. Its religion is Islam. Its constitution is Almighty God's Book, The Holy Qur'an, and the Sunna (Traditions) of the Prophet (PBUH). Arabic is the language of the Kingdom. The City of Riyadh is the capital."