Note 584 — Chapter XLVIII · YEZID APPOINTED HEIR APPARENT.—HEREDITARY NOMINATION BECOMES A PRECEDENT. A.H. LVI. A.D. 676.
Reading edition
That the Caliph should be a Coreishite was a condition generally admitted, excepting by the Khârejites, who opposed the exclusive pretensions of the Coreish, and, supposing there were a Caliph (for the stricter would have had only a Council of State), were indifferent from what stock he came.