Map showing the course of the Islamic armies and their conquest of Egypt and Nubia.
Dr. Husein Mu'nis et al.
1986
<a rel="nofollow" class="external text" href="https://archive.org/stream/waq50265/atlasti#page/n117/mode/2up">أطلس تاريخ الإسلام، ص 119</a>