About Him [Bahá’u’lláh] Shaykh Ahmad-i-Ahsá’í, the herald of the Bábí Dispensation, who had foreshadowed the “strange happenings” that would transpire “between the years sixty and sixty-seven,” and had categorically affirmed the inevitability of His Revelation had, as previously mentioned, written the following: “The Mystery of this Cause must needs be made manifest, and the Secret of this Message must needs be divulged. I can say no more, I can appoint no time. His Cause will be made known after Ḥín (68)” (i.e., after a while).
- Shoghi Effendi ('God Passes By', chapter 6)