The Báb “assiduously prepared” some of His disciples “to expect the imminent Revelation” of Baha’u’llah

Some of His disciples the Báb assiduously prepared to expect the imminent Revelation. Others He orally assured would live to see its day. To Mullá Báqir, one of the Letters of the Living, He actually prophesied, in a Tablet addressed to him, that he would meet the Promised One face to face. To Sayyáḥ, another disciple, He gave verbally a similar assurance. Mullá Husayn He directed to Tihrán, assuring him that in that city was enshrined a Mystery Whose light neither Hijáz nor Shíráz could rival. Quddús, on the eve of his final separation from Him, was promised that he would attain the presence of the One Who was the sole Object of their adoration and love. To Shaykh Hasan-i-Zunúzí He declared while in Máh-Kú that he would behold in Karbilá the countenance of the promised Husayn. On Dayyán He conferred the title of “the third Letter to believe in Him Whom God shall make manifest,” while to ‘Azím He divulged, in the Kitáb-i-Panj-Sha‘n, the name, and announced the approaching advent, of Him Who was to consummate His own Revelation. 

- Shoghi Effendi  (‘God Passes By’)