No sooner had the Báb performed the last of the observances in connection with His pilgrimage to Mecca than he addressed an epistle to the Sherif of that holy city, wherein He set forth, in clear and unmistakable terms, the distinguishing features of His mission, and called upon him to arise and embrace His Cause. This epistle, together with selections from His other writings, He delivered to Quddús, and instructed him to present them to the Sherif. The latter, however, too absorbed in his own material pursuits to incline his ear to the words which had been addressed to him by the Báb, failed to respond to the call of the Divine Message.
(Chapter 7, ‘The Dawn-Breakers’)