In that city, described in Islamic traditions as “Ẓahru’l-Kúfih,” designated for centuries as the “Abode of Peace,” and immortalized by Bahá’u’lláh as the “City of God,” He, except for His two year retirement to the mountains of Kurdistán and His occasional visits to Najaf, Karbilá and Káẓimayn, continued to reside until His banishment to Constantinople. To that city the Qur’án had alluded as the “Abode of Peace” to which God Himself “calleth.” To it, in that same Book, further allusion had been made in the verse “For them is a Dwelling of Peace with their Lord … on the Day whereon God shall gather them all together.”
- Shoghi Effendi (‘God Passes By’, chapter 7)