Title: al-Istighāthah fī bidaʻ al-thalāthah
Subjects: History, Islam, Controversial literature
Places: Islamic Empire
People: Abū Bakr Caliph (-634), ʻUmar ibn al-Khaṭṭāb Caliph (-644), ʻUthmān ibn ʻAffān Caliph (-656)
Time periods: 622-661