Proper noun
Commander of the Faithful
(Islam) Arabic title of caliphs and other independent sovereign Muslim rulers who claim legitimacy from a community of Muslims.
Rabat — HM King Mohammed VI, Commander of the Faithful, sent messages of congratulations to the Heads of State of Islamic countries, on the occasion of the advent of Eid Al-Adha. Source: Internet
Though he is famous as Commander of the Faithful, his only dwelling is a hut, like the poor”. Source: Internet