Hejazi Arabic
Hejazi Arabic or Hijazi Arabic ( '), also known as West Arabian Arabic, is a variety of Arabic spoken in the Hejaz region in Saudi Arabia. Strictly speaking, there are two main groups of dialects spoken in the Hejaz region, one by the urban population, originally spoken in the major cities of Jeddah, Mecca and Medina, and another by the Bedouin or rural populations. However, the term most often applies to the urban variety which is discussed in this article.
Sudanese Arabs
While most Sudanese Arabs speak some form of Sudanese Arabic, some other Arab tribes speak different Arabic dialects like the Awadia and Fadnia tribes and the Bani Hassan, Al-Ashraf and Rashaida who speak Hejazi Arabic. In addition, Western province tribes like the Baggara and Darfurians) speak Chadian Arabic, although they have great variation in cultural and genealogy aspects. Sudanese Arabs descend primarily from migrants from the Arabian Peninsula and some of the pre-existing indigenous populations of Sudan, most predominantly the Nubian people who also share a common history with Egypt. In addition, a few Arabian tribes existed in Sudan prior to the advent of Islam. Nevertheless, most Arab tribes migrated into the Sudan in the 12th century and introduced Islam.