The Hassan Ugaas and Qayaad which constitute the two largest sub-clans of the major Dhulbahante division of Baho Nugaaleed made their name as one of the most ardent fighters for the movement.
This spiritual backdrop would later form the basis of the Maxkamadaha Darawiishta (Dervish legal courts) in 1895 and the hundreds of muqaddims learnt in its ways.
These include Qayaad and the Dudub subclans of Khalid, the Ebirar and Tuuryar whom once jointly proposed a stipend during the Somali British Military Administration.
However, Hussein Ugaas Shirshore clan members largely migrated to Waamo and Jubaland in the wake of the Eric Swayne expedition espoused by James Hayes Sadler.
According to the British War Office, the Hassan Ugaas was one of the clans exiled towards Illig (Eyl) on account of them being Darawiish during Eric Swayne's second expedition: and Moving vid Kallis, the column attacked the Nur Ahmed and Hassan Ugaz tribes at Hareyelahu, and drove them in the direction of Illig, capturing 41 poniesJama Ismail Dhoon, a Dervish muqaddim reporting on the extreme violence of the second expedition in these lands, reported on a battle between a British commander and Maxamuud Dheri, stating:[16]