Regarding the question you asked him about the Bahá'í sacred writings: These should be regarded as the writings of the Báb, Bahá'u'lláh and 'Abdu'l-Bahá, and only these should be read during the purely devotional part of the Feast.
- Shoghi Effendi (From a letter written on behalf of Shoghi Effendi, 11 May 1948 to the National Spiritual Assembly of Australia and New Zealand; The Compilation of Compilations, vol. I, Nineteen Day Feast)