'Adud al-Dawla
In 976, after the death of Rukn al-Dawla, war shortly ensured between 'Izz al-Dawla and 'Adud al-Dawla. Abu Ishaq was then sent to 'Askar Mukram in Khuzistan to secure the front of Izz al-Dawla's kingdom. Meanwhile, 'Adud al-Dawla was advancing towards Ramhurmuz, where he routed the army of the city and captured it. After receiving the news of the fall of Ramhurmuz, 'Izz al-Dawla ordered Abu Ishaq to withdraw from 'Askar Mukram and return to Iraq. 'Adud al-Dawla then advanced towards Iraq, and routed another army, which made Abu Ishaq, his brother, and Ibn Baqiyya flee from the frontier.