The Hassan were united in their opposition to Nasr. Most of the burden of fighting fell to the Emirate of Trarza, although the Emirate of Brakna sent Trarza reinforcements and helped immobilise Zawaya in their own regions to prevent them from joining the forces of Nasr. Most Zawaya of the Southern Sahara sided with Nasr, although some remained neutral, and others supported the Hassan, with a Zawaya scholar from Shinqit issuing a fatwa against Nasr, stating that he was not a Caliph and had no right to impose the zakat. This fatwa led to Hãdi, the Trarza chief, sending troops to seize animals that had already been sent as zakat.