Besides orthodox Moslems there are also Shi`ite sects, as well as a number of religious communities whose doctrine is the outcome of the process of fermentation that characterized the first centuries of Islam.
In the centre of the town stands Meshed (strictly Meshhed) `Ali, the shrine of `Ali, containing the reputed tomb of that caliph, which is regarded by the Shi`ite Moslems as being no less holy than the Ka`ba itself, although it should be said that it is at least very doubtful whether `Ali was actually buried there.
In law, he appears to have been a Shafi`ite.
In legal matters he belonged first to the Shafi`ite school, but came to adopt the views of the Zahirites, who admitted only the external sense of the Koran and tradition, disallowing the use of analogy (Qiyas) and Taglid (appeal to the authority of an imam), and objecting altogether to the use of individual opinion (Ra`y).
This derivation of the word Mass, which would connect it with the special formula of dismissal still preserved in the Roman liturgy - Ite, missa est- once generally accepted, is now disputed.