As soon as the Call from Shíráz reached his ears, Hujjat deputed one of his disciples, Mullá Iskandar, in whom he reposed the fullest confidence, to enquire into the whole matter and to report to him the result of his investigations. Utterly indifferent to the praise and censure of his countrymen, whose integrity he suspected and whose judgment he disdained, he sent his delegate to Shíráz with explicit instructions to conduct a minute and independent enquiry. Mullá Iskandar attained the presence of the Báb and felt immediately the regenerating power of His influence. He tarried forty days in Shíráz, during which time he imbibed the principles of the Faith and acquired, according to his capacity, a knowledge of the measure of its glory.
(Chapter 9, ‘The Dawn-Breakers’)