 Ibn Ghurayr threatened Ibn Mu'ammar by denying him the ability to collect a land tax for some properties that Ibn Mu'ammar owned in al-Hasa if he did not kill or drive away from Ibn ʿAbd al-Wahhab.Consequently, Ibn Mu'ammar forced Ibn ʿAbd al-Wahhab to leave.Upon his expulsion from 'Uyayna, Ibn ʿAbd al-Wahhab was invited to settle in neighboring Diriyah by its ruler Muhammad bin Saud.