Ali ibn Ibrahim al-Qummi

Abū al-Ḥasan ʿAlī ibn Ibrāhīm al-Qummi (Persian: علی بن ابراهیم قمی; Arabic: علي بن إبراهيم القمي), also known by his patronymic "Abu al-Hasan" or nickname "al-Shaykh al-Aqdam", was a 9th century Shia Muslim commentator and jurist who lived during the times of tenth and eleventh Shia Imams, Ali al-Hadi (c. 835–868) and Hasan al-Askari (c. 868–874) respectively . He was a student of Ahmad ibn Ishaq Ash'ari Qomi, a companion of the ninth, tenth and eleventh Shia Imams. He's one of the teachers of Muhammad ibn Ya'qub al-Kulayni (864–941), the author of famous Shia hadith collection Kitab al-Kafi, and many traditions in al-Kafi were transmitted by him and his father. He spread the "Kufan" traditions (Hadiths) in Qom and collected Hadith from his teachers. He wrote more than 15 books, famously his commentary Tafsir al-Qummi which utilizes hadith from the Shia Imams to explain the meanings of Quranic verses.

His other works include Akhbār Al-Qurʾan, Nawadir al-Qurʾan, al-Nasikh wa al-Mansukh (Abrogator and Abrogated books), al-Sharā'i' (Laws or Revealed religions), and al-Tawhid wa al-Shirk (Monotheism and Polytheism).