Sayf al-Dawla
The appointments of Ahmad and Uthman aroused the jealousy of other Kilabi chieftains who, seeking to replace their kinsmen, invited Nasir al-Dawla, the Hamdanid ruler of Mosul, to invade Aleppo with their assistance. Nasir al-Dawla's brother, Sayf al-Dawla entered Aleppo in October 944 and was greeted by Uthman, who took Sayf on a tour of each of the villages in Aleppo's domain. Ibn al-Adim asserts it was the internal divisions among the Kilab that enabled Sayf al-Dawla to successfully establish himself in Aleppo. Sayf al-Dawla later enlisted Kilabi tribesmen in his failed attempt to conquer Ikhshidid-controlled southern Syria in 946. However, due to incessant Bedouin raids against his subjects, Sayf al-Dawla evicted most of the tribes from northern Syria and into the Jazira. An apparent exception to these expulsions was the Kilab, who were the only tribe authorized to inhabit northern Syria. Nonetheless, they were in conflict with Sayf at some point, but by the time he died in 967, he granted the Kilab "amān" (pardon).