Author: al-Ḥasan ibn ʻAbd al-Raḥman Rāmhurmuzī
Alternate names: ابو محمد الحسن بن عبد الرحمن بن خلاد الرامهرمزي; Abū Muḥammad al-Ḥasan ibn ʻAbd al-Raḥmān ibn Khallād al-Rāmahurmuzī; al-Ḥasan ibn ʻAbd al-Raḥmān Rāmhurmuzī; Ibn al-Khallād
Died: ca. 971
Bio: Persian hadith specialist and author who wrote one of the first comprehensive books compiled in hadith terminology literature, al-Muḥaddith al-Fāṣil bayn al-Rāwī wa al-Wāʻī.