Related Clues:

• It's Arabic for 'submission'
• 53-Across's faith
• One of the world's religions
• 'Submission' in Arabic
• Certain Mideast belief
• Sunni's belief
• Belief of more than 5 million Americans
• World religion
• Fatima's faith
• A faith
• An Eastern belief
• Muslim belief
• Muslim's faith
• Adherent in Iran
• Five Pillars of ___