In pre-Islamic Arabia, the tribes of Mudar occupied large areas of the
Hejaz,
Tihamah,
Najd, and adjoining regions. Along with Rabi'a, they were at various times under the suzerainty of southern Arabian powers, particularly the
Kingdom of Kinda, whose rulers bore the title "king of Maʿadd" or "king of Mudar and Rabīʿa". The earliest text that mentions Mudar is an
inscription, al-῾Irāfa 1 (c. 440?), discovered at
Zafar, the capital of the
Kingdom of Himyar ruling South Arabia. The inscription mentions the chief of Mudar travelling to
Mas'al Jumh to meet the king of
Himyar. Mas'al Jumh was the center of Ma'add, which, at the time, was under Himyarite hegemony; the Mudarite chief travelling to the region to meet the Himyarite king suggests that Mudar, too, was then under Himyarite hegemony. There is one other pre-Islamic inscription that mentions Mudar: Maʾsal 2, dated to June of 521 AD. This source mentions a Himyarite expedition into Sasanian territory which received reinforcements from Mudar, and its leaders, the
Banu Tha'labah. Following the decline of Himyarite authority and the collapse of Kindite rule, Mudar tribes emerged as autonomous actors in central Arabia. They feature prominently in accounts of intertribal warfare, migrations, and alliances, including conflicts involving Rabīʿa and the
Lakhmid and
Ghassanid client kingdoms. During the later sixth century, sections of Mudar expanded into northern Arabia and Mesopotamia, where the name
Diyār Muḍar came to designate a distinct tribal territory. With the rise of Islam, many Mudar tribes entered the Muslim polity, though not simultaneously or uniformly. In early Islamic historiography, "Mudar" increasingly functioned as a political label within the broader tribal dualism opposing Mudar to Yemen (or
Qahtan), a division that became especially prominent after the first
Islamic civil wars. == Tribal division ==