Panj Kanz ("The Five Treasures"). Oral discourse of Baha'u'llah in early 1860s in Baghdad to a handful of Iranian expatriate princes, recorded by Nabil Zarandi. Published in Ahang-i Badi` (Publication details not available).

References: Adib Taherzadeh, The Revelation of Baha'u'llah 4 vols. (Oxford: George Ronald, 1974-1987), 2:140-143.