Isa participated in the hunt for the Dulafid Bakr ibn Abd al-Aziz, who led a guerrilla war against the Abbasids. Although driven to flight in a first encounter, in early spring 897 Isa inflicted a major defeat on the Dulafid, destroying his army and looting his camp. Bakr himself barely escaped with a few followers.[2] On 26 January 898, Isa defeated another Dulafid, Abu Layla ibn Abd al-Aziz, near Isfahan.