October 24

From the text of this explicit and authoritative interpretation [by ‘Abdu’l-Baha] of so ancient a prophecy [1] it is evident how necessary it is for every faithful follower of the Faith to accept the divine origin and uphold the independent status of the Muhammadan Dispensation. The validity of the Imamate is, moreover, implicitly recognized in these same passagesthat divinely-appointed institution of whose most distinguished member the Báb Himself was a lineal descendant, and which continued for a period of no less than two hundred and sixty years to be the chosen recipient of the guidance of the Almighty and the repository of one of the two most precious legacies of Islám. 
- Shoghi Effendi  (From a letter dated February 8, 1934; ‘The Dispensation of Baha’u’llah’)
[1] A prophecy in the “sacred books of the followers of Zoroaster”