Jariri is the name given to a short-lived school of Islamic jurisprudence (Fiqh) that was derived from the work of Muhammad ibn Jarir al-Tabari, the ninth and tenth-century Muslim scholar of Baghdad. In Sunni Islam, four main Madhhabs, or schools of jurisprudence, have survived into the present, but in the early centuries of Islam, many schools of interpreting Islamic law came into being, generally deriving from the work of prominent legal scholars.
The Jariri school was frequently in conflict with the strict Hanbali school of Ahmad Ibn Hanbal. It is difficult to characterize Islamic schools of law in brief, but the Jariri school was notable for its liberal attitudes toward the role of women; the Jariris for example held that women could be judges, and could lead men in prayer.
Bosworth, C.E., Encyclopedia of Islam, "Al-Tabari, Abu Djafar Muhammad b. Djarir b. Yazid"
al-Mawardi, Ahkam fi Usul al Fiqh