After Muhammad and the first converts to Islam were forced to leave
Mecca, the community was welcomed in Medina by the Ansar, a group of Pagans who had converted to Islam. Despite Medina already being occupied by numerous Jews and polytheistic tribes, the arrival of Muhammad and his followers provoked no opposition from Medina's residents. Islamic historian,
Tabari, suggested that Muhammad's initial intentions upon arriving in Medina was to establish a mosque, however this is unlikely. Membership to the
ummah was not restricted to adhering to the Muslim faith but rather encompassed all of the tribes as long as they vowed to recognize Muhammad as the nation and political figure of authority. The Constitution of Medina declared that the Jewish tribes and the Muslims from Medina formed 'one
ummah.' It deals with various tribal issues such as the organization and leadership of the participating tribal groups, warfare, blood money, ransom of captives, and war expenditures. It is at the beginning of the document that the Muslims from the Quraysh (those from Mecca) and the Muslims from Yathrib (those from Medina) are declared to be an
ummah or one nation. The word
ummah appears again when the document refers to the treaty of the Jews and states that the Yahūd Banī ' Awf, or Jews, are an
ummah that exists alongside the
ummah of the Muslims or may be included in the same
ummah as the Muslims. The document states that the Jews who join the Muslims will receive aid and equal rights. In addition, the Jews will be guaranteed security from the Muslims, and are granted to maintain their own religion just as the Muslims will maintain theirs. This implies that the
ummah is not strictly a religious nation in Medina. The Constitution of Medina lists the various Medinan tribes derived from the Aws and Khazraj as well as the several Jewish tribes that are granted to keep their tribal organization and leadership. The document also reveals that each group, the Muslims and the Jews, is responsible for its own finances except during time of war, when the two are able to share expenses. ==Back to Mecca==