This is evident from the text written by Al-Maqrizi in his book about the region of al-Ma'din, which was chosen by the Arab Islamic mujahid Abu Abd al-Rahman Abd Allah ibn Abd al-Hamid al-Amri around the middle of the third Hijri century, the middle of the Gregorian century.

Al-Maqrizi says that al-Amri came to Egypt in 424 AH / 1052 AD, 856 AH. According to him, he possessed tools of jurisprudence, literature, poetry, knowledge of astronomy and philosophy. News of al-Ma'din reached him, so he went there to extract gold. He traveled to Aswan for trade, settled there, sat with its sheikhs, and debated with them in knowledge. Then he entered the land of al-Ma'din. It seems that this was long before his campaign in 255 AH, perhaps five or six years before that. His prior travel and knowledge of this region may have been strong motives for his campaign against Nubia and Beja to kill those who attacked Muslim worshippers on Eid al-Adha. Or it may have been Ahmed ibn Tulun's desire to send him at the head of that campaign due to his knowledge of the conditions, routes, paths, and people of those lands.

The al-Amri campaign had several multiple objectives. It was not intended only for the Beja tribes in the Eastern Desert, but also included the Nile regions. Although some sources attribute this campaign to an attempt to discover minerals, this is an attempt to divert the campaign from its main objective, which was to call for Islam and spread it among the Beja and Nubians, as well as to discipline the transgressors on Egyptian lands. Spreading Islam was the primary goal. How can an Islamic preacher who dedicates himself to teaching in Fustat and Qairawan abandon knowledge and struggle in search of minerals in a barren desert, when our sources do not indicate that he left Fustat for Qairawan in search of routes? Nor would he have traveled west to teach in the Qairawan mosque.

It can also be said that his movement south to establish an Arab Islamic province was to open the door for migration to the south for the Arab tribes.