Beginning in 867, the Abbasid government in Samarra undertook a series of military campaigns in an effort to suppress the Kharijite rebellion.
The caliphal forces remained at al-Sinn for some time, but in early June Musa and Muflih were made aware of a plot by al-Muhtadi to either have them assassinated or imprisoned; they immediately responded by abandoning al-Jazira and withdrawing toward the Khurasan Road [REF].