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).

Abu Ja'far Ahmad al-Tahawi (Arabic: أبو جعفر الطحاوي, romanized: Abū Jaʿfar Aḥmad aṭ-Ṭaḥāwī) (843 – 5 November 933), or simply aṭ-Ṭaḥāwī (Arabic: الطحاوي), was an Egyptian Arab Hanafi jurist, hadith scholar and Athari theologian. He studied with al-Muzani and was a Shafi'i jurist, then with Ahmad b. Imran and followed the Hanafi school.

Abū Jaʿfar Muḥammad ibn Jarīr ibn Yazīd al-Ṭabarī (Arabic: أبو جعفر محمد بن جرير بن يزيد الطبري), also known as al-Tabari or in Persian as Tabari, 839–923 CE, was an influential Sunni scholar, historian and commentator on the Qur'an from Amol, Tabaristan (modern Mazandaran Province of Iran). Today, he is best known for his expertise in Qur'anic exegesis (tafsir) and Historiography, but he has been described as "an impressively prolific polymath.