Abdullah bin Dafallah Al-Arki, a student of Sheikh Abdul Rahman bin Jabir, was one of his four sons who received their education at Al-Azhar Al-Sharif. He was appointed by Sheikh Ajib to the position of judge. He followed the path of the people in joining the Qadiriya order. However, Sheikh Abdullah refused this request because he was a jurist who gave all his attention to jurisprudence. But when he saw the high status attained by the supporters, poles, and disciples of Sheikh Taj al-Din al-Bahari among the Funj and the Maghreb, and the miracles they were known for among the common people, he was influenced to join this order. He followed Sheikh Taj al-Din al-Bahari to the Hijaz after he had left Sudan.

Sheikh Al-Bahari had traveled to the Hijaz to spread his order there, which met with great acceptance. Wad Dhaif Allah bin Muhammad Al-Ja'ali, the author of the Tabaqat books during the time of the Sudanese Sheikh, mentions that Al-Niqqa remained in the service of Sheikh Al-Bahari until he traveled to the Hijaz, where he gave him the covenant and all his states and initiated him into the stations of men. It is sufficient that he educated his son Sheikh Ya'qub and took care of his daughter, and Ya'qub raised his two sons, Musa and Muruq, who is the son of Batool, and Abdul Razzaq, and Abdul Razzaq. Thus, the order of Taj al-Din branched out from these mentioned individuals.

Thus, the Iraqi current, along with the Egyptian, Hijazi, Maghrebi, Western Sudanese, West African, and Southern Arabian currents, contributed to enriching the Islamic movement, which played its role in Sudan and qualified it to perform its effective role in the heart of the African continent by providing it with cultural elements that all intertwined on the land of Sudan, forming those Islamic cultural features.

The connection between Sudan and the neighboring countries that contributed to enriching the cultural and scientific movement was continuous. Just as the people of Darfur connected with Tunisia and many of them went to Kano and Timbuktu in search of knowledge, thus, Sennar, the center of the Funj Sultanate, and Al-Fashir, the center of the Funj Sultanate, were connected.

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