Muḥammad ibn as-Sāʾib al-Kalbī

Muhammad ibn al-Sā'ib al-Kalbī, also known as Abū n-Nadr, was an Arab Abbasid scholar and polymath from Kufa. Born around 675 AD, al-Kalbī is well-regarded for his contributions to Islamic historiography, tafsir, and genealogical literature. His works have been foundational to later Islamic traditions and historical chronicles. However, according to Al-Dhahabi, his hadith was considered non-trustworthy since he was a Shia. Among his famous students were his son, Sufyan al-Thawri and the prominent historian Ibn Ishaq.