Al-Hallaj (Arabic: ابو المغيث الحسين بن منصور الحلاج, Abū 'l-Muġīth Al-Ḥusayn bin Manṣūr al-Ḥallāj) or Mansour Hallaj (c. 858 – 26 March 922) (Hijri c. 244 AH – 309 AH) was a Persian mystic, poet and teacher of Sufism.

Abu al-Qāsim Sulaymān Ibn Ahmad ibn Ayyub ibn Muṭayyir al-Lakhmī al-Shāmī al-Ṭabarāni (260 AH/c. 874 CE - 360 AH/971 CE) was a Sunni Arab hadith scholar and jurist.

Muhammad ibn Hibban al-Busti (Arabic: محمد ابن حبان البستی) (c. 270–354/884–965) was a Sunni Arab scholar, Muhaddith, historian and author of well-known works.

Al-Mas'udi (Arabic: أَبُو ٱلْحَسَن عَلِيّ ٱبْن ٱلْحُسَيْن ٱبْن عَلِيّ ٱلْمَسْعُودِيّ, ʾAbū al-Ḥasan ʿAlī ibn al-Ḥusayn ibn ʿAlī al-Masʿūdī; c. 896–956) was an Arab historian, geographer and traveler.

Ibn ʿAbd Rabbih (Arabic: ابن عبد ربه) or Ibn ʿAbd Rabbihi (Ahmad ibn Muhammad ibn `Abd Rabbih) (860–940) was a Sunni Arab writer and poet widely known as the author of Al-ʿIqd al-Farīd (The Unique Necklace).