The Arabs' settlement in the two regions increased, and consequently, the interaction between the indigenous people and the incoming Arabs grew. From here, the Arabs of Rabi'a mixed with the Beja, especially the "Hadareb." The Arabs must have realized the value of matrilineal inheritance, so the Arab chiefs were keen to marry Beja women, which led to the transfer of leadership in the Beja homelands into Arab hands. The Arabs of Rabi'a in the Wadi Al-Allaqi were able to establish the nucleus of the first Islamic principality in Al-Allaqi, led by Ibn Marwan bin Ishaq. This principality later moved its headquarters to Aswan, where another branch of Bani Rabi'a resided. The Bani Rabi'a in Aswan had mixed with the Nubians and also married daughters of Nubian chiefs. They also benefited from the matrilineal inheritance system and formed a ruling class to which the Nubians of Marbis (Northern Nubia) submitted.

When Al-Masudi visited Egypt in 516 AH / 940 AD, he tells us about the mixing of the Arabs of Rabi'a with the Beja in the mining region and their union. They overpowered those around them, whether in Nubia or other inhabitants. He mentions that their amir, "Abu Marwan bin Shar bin Ishaq bin Rabi'a," commanded an army of three thousand horsemen from Rabi'a and their allied Arabs, and thirty thousand from the Madareh, whose origin might be from Hadramaut on any of the Bilal. From this description, it is clear to us that a small Arab state was established in those lands. Al-Masudi also mentions the arrival of Islam to the island of Sadken, where a group known as "Al-Khasteh" had embraced Islam. In the lands of Lower Nubia, loyal to Aswan, Al-Masudi tells us about groups from the tribes of Qut'an, Rabi'a, and Quraysh who advanced south from Aswan, where they bought lands from the Nubians.

From all this, it is clear to us that these Arab migrations to Aswan occurred under different circumstances. Their general character was not marked by rapid and organized action, resulting in intellectual and social enlightenment. Rather, the most significant feature was their peaceful and social integration, driven by social motives such as marriage and kinship, and political motives due to changing political conditions.