Islam was a good religion, but they destroyed it. Differences arose from the beginning of the Dispensation and, after the ascension of the Prophet, the foundation of Islam was shattered
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