Some believers who attained the presence of Bahá'u'lláh had reached such a lofty station that allowed them to see a glimpse of that inner light which was concealed within His person. They were dazzled by it and could no longer bear to stand in the darkness of this world.
One such believer was Siyyid Isma'il of Zavarih surnamed Dhabih (Sacrifice) by Bahá'u'lláh. He was a devout man highly esteemed for his piety and rectitude of conduct, his learning and knowledge. He was converted to the Faith in the early days of the Báb's ministry, attained His presence in the house of the Imam-Jum'ih of Isfahan, and was present when the Báb revealed a commentary on the Surih of V'al-'Asr. The rapidity with which the Báb penned that lengthy epistle and the power of His utterance as He chanted some of its passages, in the presence of a number of distinguished divines, captured the imagination of Dhabih, who became one of His devoted followers.
Over a decade later, Dhabih came to Baghdad and attained the presence of Bahá'u'lláh. In that city he stayed with a believer whose home was in the same neighbourhood as Bahá'u'lláh's house. This man, Aqa Muhammad-Rida, had invited Bahá'u'lláh to his home, begging Him for the inestimable privilege of acting as His host. Bahá'u'lláh accepted his invitation and a few days later, in the afternoon, honoured Aqa Muhammad-Rida by going to his house.