The Kitáb-i-Aqdas
75.He Who is the Dawning-place of God’s Cause hath no partner in the Most Great Infallibility.   ¶47
In the Tablet of Ishráqát, Bahá’u’lláh affirms that the Most Great Infallibility is confined to the Manifestations of God.1
Chapter 45 in Some Answered Questions is devoted to an explanation by ‘Abdu’l-Bahá of this verse of the Aqdas. In this chapter He stresses, among other things, the inseparability of essential “infallibility” from the Manifestations of God, and asserts that “whatever emanates from Them is identical with the truth, and conformable to reality,” that “They are not under the shadow of the former laws,” and “Whatever They say is the word of God, and whatever They perform is an upright action.”
1 Tablets of Bahá’u’lláh : Ishráqát, p. 105