Consequently...
Consequently, rather than a homogeneous approach to all issues, especially of a non-fundamental nature, one must expect to find in the Umma a multiplicity of approaches and points of view, with the acceptance of Muhammad and his mission being the fundamental factor binding the various groups together.
The inclination of some of the Arabs from among the of the Prophet to support 'Ali was thus a natural corollary of the already existing ideas prevalent among the various Arab tribes who together constituted Muhammad's Umma at Medina.
This Umma consisted of the Meccans, both from the Quraysh al-Bitah (those who inhabited the district immediately around the Ka'ba) and Quraysh az-Zawahir (those whose quarters were in the outskirts); of Medinese, who were divided into Aws and Khazraj, both tribes of the South Arabian stock and still preserving many of the characteristics of their original land; of the desert Arabs surrounding Med ma; and even of some Arabs and non- Arabs from distant places, such as Bilal of Abyssinia and Salman of Persia.
All of them together formed a common society under Islam, but when we consider a problem common among them we have to take into consideration the different temperaments and inclinations of each group, and not those of only one single people, group, or locality. We must presume that the Arabs of different origins and socio-cultural backgrounds understood Islam, at least in its early stage, according to their own social and moral ideas.
Arab society, both nomadic and sedentary, was organized on a tribal basis, and of all the social bonds, loyalty to the tribe (al-'asabiya) was considered the most important. This feeling of al-'asabiya, along with other aspects of tribal life, provides the most emphatic expression of and a constant theme for pre-Islamic poetry.
The tribal system was based on the actual[^4] or fictitious descent from a common ancestor through whom the social and moral status of the members of the tribe was determined. People who could not boast of their ancestors as a symbol of greatness were of little social standing and often subject to contempt.
Knowledge and awareness of the common ancestor was therefore the central point in Arab social consciousness, and honour and glory of a tribe in comparison with any other tribe consisted of the honour and glory of its ancestors. Any claim to prestige and honour of the individual members as well as the whole tribe was perhaps exclusively dependent on that of the ancestors.