نهر اليرموك
In 906, the population was massacred in a raid by the rebellious Qarmatians. The late 10th-century Arab geographer al-Muqaddasi noted that during the Abbasid period, Adhri'at was a major administrative center on the edge of the desert. He claimed the city was part of the Jund al-Urdunn district and that its territory was "full of villages" and included the region of Jerash to the south of the Yarmouk River.