Aittle more than a century latem(1630), a Yemen noble Khasim succeeded in expelling the Turk and establishing a native imamate, which lasted until 1871.
In 1435 the people rose against the tyranny of the Bani Nebhan and restored the imamate of the tribe al-Azd.
According to the Shiite Moslems, who call the office the "imamate" or leadership, no caliph is legitimate unless he is a lineal descendant of the Prophet.
The theologians tried to uphold the orthodox theory by declaring the sultanate to be subordinate to the imamate or sovereignty of the caliphs, and dependent on the latter especially in all religious matters; but their artificial theories have never modified facts.
He nominates the Sheikh ul-Islam or mufti (q.v.) of Constantinople (grand mufti), who is his representative in the imamate and issues judgments in points of faith and law from which there is no appeal; but the nomination must fall on one of the mollahs, 2 who form the upper stratum of the hierarchy of ulema.
The elements of this opposition were of very various kinds (r) The old-fashioned Moslems, sons of the Ansar and Mohajir, who had been Mahomet's first companions and supporters, and could not bear the thought that the sons of the old enemies of the Prophet in Mecca, whom they nicknamed tolaga (freedmen), should be in control of the imamate, which carried with it the management of affairs both civil and religious.
Walid was the first caliph, born and trained as prince, who felt the majesty of the imamate and wished it to be felt by his subjects.
The moderate party distinguished itself from the other Moslems only by their doctrine that the imamate belonged legally to a man of the house of the Prophet.