The Fatimids' preoccupation with internal events in Egypt encouraged the Banu Kanz to expand their influence in Upper Egypt. In the year 1073/444 AH, the Emir of Banu Kanz weakened the Fatimid state in the mid-tenth century AD. He exploited its ongoing crisis (457-1063 AD) and declared his principality's independence from the Fatimids. However, this independence did not last long, as the arrival of Badr al-Jamali in Cairo in the same year signaled the return of order to the Fatimid possessions.

Badr al-Jamali managed to defeat Kanz al-Dawla in the year 1076/449 AH. Kanz al-Dawla quickly fled to Aswan, but Badr al-Jamali pursued him south of Aswan, near the First Cataract. Kanz al-Dawla fled to Dongola, the capital of the Makuria kingdom. However, Badr al-Jamali sent a messenger, the noble Sharif Sayf al-Dawla, to the King of Dongola in the name of Caliph al-Mustansir Billah, requesting the handover of Kanz al-Dawla Muhammad. The Nubian king answered the Fatimid commander's request in accordance with the terms of the Treaty of Baqt. He returned with him to Cairo, where Badr al-Jamali had him hanged.

Thus, the Fatimids were able to restore their influence over Upper Egypt and subdue the city of Aswan, the capital of the Banu Kanz. It is possible that for the first time, the city came under Fatimid control.

However, the execution of Kanz al-Dawla Muhammad, the Emir of Banu Kanz, did not mean the final end of the Kanz's influence in Aswan. The King of Nubia, due to his good relations with the Fatimid Caliph al-Mustansir Billah, intervened to restore the influence of the Banu Kanz in Aswan. The King of Nubia's request was granted, and Sa'd al-Din Sarukin al-Qasimi, the brother of Kanz al-Dawla Muhammad, was appointed Emir of Aswan in the year 1081/474 AH. Therefore, the influence of the Banu Kanz over Aswan returned, stronger than before. Consequently, good relations were re-established between the Fatimids and the Banu Kanz, as evidenced by the participation of the Banu Kanz.

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