During his residence in Ireland he founded, in addition to a number of churches, two famous monasteries, one named Daire Calgaich (Derry) on the banks of Lough Foyle, the other Dair-magh (Durrow) in King's county.
691 Abdalmalik at last encamped at Dair al-Jathaliq (the monastery of the Catholicus) between Maskin, not far from the site of Bagdad, and Bajomaira.
Hajjaj, afraid lest his communications with Syria should be cut off, pitched his camp at Dair Qorra, eighteen miles west from Kufa towards the desert, where Mahommed, the brother of the caliph, and Abdallah, his son, brought him fresh troops.
Ibn Ash`ath encamped not far from him at Dair al-Jamajim with a far more numerous army.
This is apparent from the fact that one of the conditions of peace proposed by Abdalmalik before the battle of Dair al-Jamajim had been that henceforth the Irakian troops should be paid equally with the Syrian.
Immediately after the victories of Dair al-Jamajim and Maskin, in 702, Hajjaj, built a new residence on the Tigris, between Basra and Kufa, which he called Wasit ("Middle").