Khalid ibn al-Walid
He also ordered the Expedition of Khalid ibn al-Walid (Dumatul Jandal), which took place in October 630 to attack the Christian prince of Duma, as well as the Expedition of Khalid ibn al-Walid (2nd Dumatul Jandal) in April 631 to demolish an idol called Wadd, worshipped by the Banu Kalb tribe. In 630 AD, Khalid ibn al-Walid captured Dumat Al-Jandal and it became a part of the newly formed Islamic empire.