People of all ranks flocked to the house of the Imám-Jum`ih. Manú[_ch_]ihr [_Kh_]án himself called there to meet the Báb. He was a proud man and a powerful Governor, ruling over an important section of the realm. His visit to a young Siyyid, hitherto unknown, indicates the measure of change wrought in him by that one letter which he had received from the Báb. Indeed, Manú[_ch_]ihr [_Kh_]án was to become a changed man under the influence of the Báb, who had been a fugitive and an exile at his door. He now asked the Báb for a treatise on 'Nubuvvat-i-[_Kh_]áṣṣih'--the specific station and mission of the Prophet Muḥammad. Again surrounded by a number of the leading divines of Iṣfahán, the Báb wrote instantaneously the treatise which the Governor desired. Within two hours He produced a disquisition of fifty pages, superbly reasoned, proving unassailably the claim and the achievement of Islám, and ending His theme on the subject of the advent of the Qá'im and the Return of Imám Ḥusayn (Rij`at-i-Ḥusayní). Manú[_ch_]ihr [_Kh_]án's immediate response was: Hear me! Members of this revered assembly, I take you as my witnesses. Never until this day have I in my heart been firmly convinced of the truth of Islám. I can henceforth, thanks to this exposition penned by this Youth, declare myself a firm believer in the Faith proclaimed by the Apostle of God. I solemnly testify to my belief in the reality of the superhuman power with which this Youth is endowed, a power which no amount of learning can ever impart.[5] It was inevitable that soon the jealousy of the clergy would be aroused. Áqá Muḥammad-Mihdí,[CQ] the son of the renowned Ḥájí Muḥammad-Ibráhím-i-Kalbásí, began to use the pulpit to insult and disparage the Báb. When Ḥájí Mírzá Áqásí heard of the situation in Iṣfahán, he wrote to upbraid the Imám-Jum`ih for having harboured the Báb. The Grand Vizier was afraid that Manú[_ch_]ihr [_Kh_]án, because of the confidence that Muḥammad [_Sh_]áh reposed in him, might succeed in arranging a meeting between the Báb and the monarch. The hold which Ḥájí Mírzá Áqásí had on Muḥammad [_Sh_]áh was chiefly due to the quasi-religious nature of their relationship. He was the mur[_sh_]id (spiritual guide) and his king was the muríd (disciple). The Imám-Jum`ih, still loyal, took no step in opposition, but endeavoured to reduce the number of visitors. [Footnote CQ: Because of his stupidity Áqá Muḥammad-Mihdí was mockingly called Safíhu'l-`Ulamá--the Foolish One of the Learned.] As the clamour of the opponents increased, Manú[_ch_]ihr [_Kh_]án thought of a scheme to silence them. He invited the leading divines to meet the Báb at his home and argue their case. Ḥájí Siyyid Asadu'lláh, the son of the celebrated Ḥájí Siyyid Muḥammad-Báqir-i-Ra[_sh_]tí, declined the invitation and advised the rest to do the same: