To him [Siyyid Muhammad of Isfahán] Bahá’u’lláh had later referred in the Kitáb-i-Aqdas as the one who had “led astray” Mírzá Yaḥyá, and stigmatized him, in one of His Tablets, as the “source of envy and the quintessence of mischief,” while ‘Abdu’l‑Bahá had described the relationship existing between these two as that of “the sucking child” to the “much-prized breast” of its mother.
- Shoghi Effendi (‘God Passes By’, chapter 7)