Under the leadership of Muhammad ibn Uthman, the Zutts organized themselves militarily and expanded their control to key locations such as Kufa, Wasit, Al-Jazira, and the outskirts of Baghdad.
[6] The Abbasid Caliph Al-Mu'tasim later attempted to suppress the Zutt rebellion by transporting some of their people to Ayn Zarba, a frontier district, in an effort to break their control over the marshlands.
[7] Abu Ishaq al-Fazari refused to purchase land in this frontier district, considering it suspect due to its history of conquest and transfer among groups of soldiers who did not properly divide it.
The Abbasids, while initially caught off guard by the speed and effectiveness of the Zutt offensive, eventually responded with efforts to reclaim the lost territories.
The Zutt victory in Basra disrupted Abbasid control over vital resources and trade routes, significantly weakening their economic position.