His anger was provoked, however, by the election of the third caliph, Uthman.
Uthman al-Jullabi al-HujwirI in the Kaslif-ulmalijub, or, Revelation of Hidden Things, which treats of the various schools of Sufis, their teachings and observances.
Uthman, from the Umayya clan, represented the tribal aristocracy of Mecca, and his victory annoyed a loyalist old guard.