The Nile Valley, which are the same Arab waves that surged southwards and contributed to the establishment of the Funj state with the help of the Arabs of Najd. There were other Arab waves that surged westwards towards Darfur, carrying Arab blood and the Islamic religion to those regions, where these Arab tribes were able to do in Darfur what they did in other regions where they extended their influence after mixing with the local population and intermarrying with the sultans of Fur, just as they had intermarried with the Nubian kings in Makurra before. From here, the lineage was purely Arab in the land of Darfur, and this refutes the claims that the sultans of Fur were a people formed from the Berbers, Daju, and Tunjur.

Sulayman Solon had sought the help of the incoming Arab tribes in subjugating the tribes and external populations to the sultans of Fur and their rule, who lived in the Marrah Mountains or the surrounding areas. Subsequently, Islam spread widely, imprinting the land with an Islamic character, and all the population elements of his sultanate were unified under his Islamic banner.

He was also able to rebuild the state on strong foundations. After unifying the tribes and establishing a dynasty that extended its influence over Darfur and Kordofan, this dynasty was able to support Islam and Arabism and work to spread them in all the regions under its control.

In the eighteenth century AD, this Fur dynasty dug a series of artesian wells extending between El Fasher and the Kaja highlands. These wells had a significant impact on facilitating trade routes and connecting Darfur with the eastern and northwestern Islamic centers from which Islam flowed into the Darfur region. Darfur reached the peak of its greatness during this period. This dynasty worked to strengthen and solidify Islam and revitalize the Islamic movement. Hence, they encouraged the arrival of scholars from the East, Egypt, the Maghreb, and Andalusia to their land to teach the people the principles of their true Islamic religion, where Arabs began to play a prominent, effective, and highly influential role in the history of this land.