H. M. Balyuzi, ‘Abdu’l-Bahá: The Centre of the Covenant of Bahá’u’lláh, 2nd ed. (Oxford: George Ronald, 1992), p. 136.
Selections from the Writings of ‘Abdu’l-Bahá, op. cit., pp. 254-255, (section 200.3).
Shoghi Effendi, God Passes By, op. cit., p. 258.
ibid., p. 259.
The Bahá’í Centenary, 1844-1944, compiled by the National Spiritual Assembly of the Bahá’ís of the United States and Canada (Wilmette: Bahá’í Publishing Committee, 1944), pp. 140-141.
Shoghi Effendi, God Passes By, op. cit., p. 280.
‘Abdu’l-Bahá in London: Addresses and Notes of Conversations (London: Bahá’í Publishing Trust, 1982), pp. 19-20.
‘Abdu’l-Bahá, Tablets of the Divine Plan (Wilmette: Bahá’í Publishing Trust, 1993), p. 94.
Shoghi Effendi, God Passes By, op. cit., pp. 281-282.
‘Abdu’l-Bahá, The Promulgation of Universal Peace (Wilmette: Bahá’í Publishing Trust, 1995), p. 121, provisional re-translation.