Title: Khulafāʾ al-Nabī
Subjects: Friends and associates, Muslims, Biography
People: ʻUmar ibn al-Khaṭṭāb Caliph (d. 644), ʻAlī ibn Abī Ṭālib Caliph (600 (ca.)-661), Muḥammad Prophet (d. 632), Abū Bakr Caliph (d. 634), ʻUthmān ibn ʻAffān Caliph (d. 656)