The other matter is that, at thy previous request, three verses were revealed and sent specially for the gravestone of the illustrious exalted leaf, upon her rest the Most Glorious of the Glorious
AFNAN.Afnán, Mírzá Ḥabíbu’lláh. Memories of the Báb, Bahá'u'lláh and ‘Abdu'l-Bahá: Memoirs of Mírzá Ḥabíbu'lláh Afnán (trans. Ahang Rabbani). Kalimat, 2005. English translation of Khátirát-i-Ḥayát. Vol. 4 of “Witnesses to Bábí and Bahá’í History”.https://bahai-library.com/pdf/r/rabbani_habibullah_afnan_memories.pdf