ʽAbd ar-Rahman ibn Muhammad
ʽAbd ar-Rahman ibn Muhammad (died 16 June 1825) was the Emir of Harar (1821 - 1825). On the death of his brother, Emir Ahmad II ibn Muhammad, ʽAbd ar-Rahman and his other brother ʽAbd al-Karim quarreled over who would succeed, and ʽAbd ar-Rahman gained the throne first with the help of the Babille Oromo who dwelled to the east of Harar.
Source: Wikipedia — ʽAbd ar-Rahman ibn Muhammad (CC BY-SA 4.0)