"Letter concerning `Ishqabad." Printed in Ruhu'llah Mihrabkhani, Zindigani-i Mirza Abu'l-Fadl Gulpaygani. Tehran: Baha'i Publishing Trust, 1978. Pp. 171-189. Reprinted Lansing: H-Bahai, 2000.

References: Moojan Momen, The Babi and Baha'i Religions, 1844-1944 (Oxford: George Ronald, 1981), pp. 296-300; Ahang Rabbani, "Mirza Abu'l-Fadl Gulpaygani's 'The Martyrdom of Haji Muhammad-Rida,'" Translations of Shaykhi, Babi and Baha'i Texts, vol. 4, no. 3 (April, 2000).