Ahmed ibn Hanbal (Arabic: \‏أحمد بن حنبل‏‏ \ Ahmad bin Hanbal‎) (780 - 855 CE, 164 - 241 AH) was an important Muslim scholar and theologian born in Khorassan to a family of Arab origin.He is considered the founder of the Hanbali school of fiqh (Islamic jurisprudence). His full name was Ahmad bin Muhammad bin Hanbal Abu `Abd Allah al-Shaybani. Shayban or Banu Shaybah is Ibn Hanbal\s tribe. It is an Arabic tribe located in Arabia and it still exists in Arabia peninsula.