Al-Qadi al-Nu'man
Abū Ḥanīfa Ali ibn al-Nuʿmān ibn Muḥammad ibn Manṣūr ibn Aḥmad ibn Ḥayyūn al-Tamīmiyy (Arabic: علي بن النعمان بن محمد بن منصور بن أحمد بن حيون التميمي), generally known as al-Qāḍī al-Nu‘mān (القاضي النعمان) or as ibn Ḥayyūn (ابن حيون) (died 974 CE/363 AH) was an Isma'ili jurist, hadith scholar and the official historian of the Fatimid Caliphate. He was also called Qāḍī al-Quḍāt (قَاضِي القضاة) "Jurist of the Jurists" and Dāʻī al-Duʻāt (داعي الدعاة) "Missionary of Missionaries".