Mullá Husayn, refreshed and fortified by the experience of
his intercourse with Bahá’u’lláh, set out on his journey to Khurásán. During
his visit to that province, he exhibited in an astonishing manner the effects
of that regenerating power with which the parting words of the Báb had invested
him.
(Chapter 6, ‘The Dawn-Breakers’)