Concerning Hindu prophecies of the coming of Baha'u'llah

"Concerning Hindu prophecies of the coming of Bahá'u'lláh and the relationship of the Hindu and Bahá'í Faiths, nothing authentic and specific is available at the World Centre, apart from the Guardian's statement in God Passes By that 'To Him the Bhagavad-Gita of the Hindus had referred as the "Most Great Spirit," the "Tenth Avatar", the "Immaculate Manifestation of the Krishna"', (p. 95); and a brief reference to Bahá'u'lláh as 'to the Hindus the reincarnation of Krishna . . .' (p. 94). Bahá'í teachings on progressive revelation do, of course, bear on the relationship of these Faiths. In a letter written on behalf of the beloved Guardian it is also written that 'We cannot be sure of the authenticity of the scriptures of Buddha and Krishna . . . ' (November 25, 1950); and in reply to a question as to whether Brahma is 'to be considered as referring to absolute diety' and Krishna 'as the Prophet of the Hindu Religion', his secretary wrote '. . . such matters, as no reference occurs to them in the Teachings, are left for students of history and religion to resolve and clarify.' (April 14, 1941)"

(From a letter dated September 1, 1977 written on behalf of the Universal House of Justice to an individual believer)

https://bahai-library.com/compilation_scriptures_previous_dispensations