Title: Ḥamzah Āz̲arak va Hārūn al-Rashīd-i ʻAbbāsī
Subjects: Correspondence, History, Kharijites
Places: Sistan (Iran and Afghanistan)
People: Ḥamzah Āz̲arak (d. 828), Hārūn al-Rashīd Caliph (ca. 763-809)