Title: Makānat al-Shaykhayn Abī Bakr wa-ʻUmar fī al-Sunnah al-Nabawīyah
Subjects: Friends and associates, Hadith, Criticism, interpretation, etc..
People: Abū Bakr Caliph (-634), ʻUmar ibn al-Khaṭṭāb Caliph (-644), Muḥammad Prophet (-632)