Referring to the prolific nature of Baha’u’llah's revelation of verses, Shoghi Effendi writes "that during the first two years after His return from His retirement, according to the testimony of Nabil, who was at that time living in Baghdad, the unrecorded verses that streamed from His lips averaged, in a single day and night, the equivalent of the Quran! As to those verses which He either dictated or wrote Himself, their number was no less remarkable than either the wealth of material they contained, or the diversity of subjects to which they referred. A vast, and indeed the greater, proportion of these writings were, alas, lost irretrievably to posterity. No less an authority than Mirza Aqa Jan, Baha’u’llah's amanuensis, affirms, as reported by Nabil, that by the express order of Baha’u’llah, hundreds of thousands of verses, mostly written by His own hand, were obliterated and cast into the river. Finding me reluctant to execute His orders, Mirza Aqa Jan has related to Nabil, Baha’u’llah would reassure me saying: "None is to be found at this time worthy to hear these melodies" '...Not once, or twice, but innumerable times, was I commanded to repeat this act.'

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