Tabernacle of Unity

The Tabernacle of Unity is a small book, first published in July 2006, containing Bahá'u'lláh's Tablet, from the early `Akká period, to Mánikchí Ṣáḥib, a prominent Zoroastrian, and a companion Tablet addressed to Mírzá Abu'l-Fadl, the secretary to Mánikchí Ṣáḥib at that time.

These, together with three shorter inspirational Tablets, offer a glimpse of Bahá'u'lláh’s relationship with the followers of Zoroastrianism.

The title of this work is taken from the following passage:

This Tablet, revealed at the request of Mánikchí Ṣáḥib in pure Persian, consists of 19 paragraphs. It emphasizes the universality of Bahá'u'lláh's prophetic claim, and includes some of the central teachings of the Bahá'í Faith.

This is a lengthy Tablet revealed on 1 July 1882. Among the subjects discussed are:

This Tablet is Bahá'u'lláh's reply to questions asked by Ustád Javán-Mard, an early Bahá'í of Zoroastrian background and ex-student of Mánikchí Ṣáḥib.

The questions are relating to the following subjects:

These two short Tablets, each addressed to a believer of Zoroastrian background, are inspirational in nature, calling the believers for deeds, not words.

...
Wikipedia