Quddús remained in Barfurúsh until the time when he was joined by Mullá Husayn after the latter’s return from his visit to the Báb in the castle of Máh-Kú. From Barfurúsh they set out for Khurásán, a journey rendered memorable by deeds so heroic that none of their countrymen could hope to rival them.
(Chapter 9, ‘The Dawn-Breakers’)