The Kitab-i-BadiBahá'u'llah’s work, the Kitab-i-Badi, which the Baha'i administration has not yet translated contains the most severe of insults and foul language against Subh-i-Azal and his followers:
“When the one who turned away from God halted (in accepting me) and fell off the path, in that moment his body left the garb of humanness and appeared and became visible in the skin of animals. Sanctified is He who changes the beings how he likes” (Kitab-i-Badi, p. 110).
“From this day, any individual that mentions as human [or humanness] a single person from those who deny me—whether that [denier] has a high or low stature—they will be excluded from all of (God’s) Merciful Graces, let alone trying to prove [those deniers] have dignity or stature” (Kitab-i-Badi, p. 140).
“Say, Oh you donkeys! Whatever God says is the truth and will not become void by the words of the polytheists (deniers of Baha’ism)” (Kitab-i-Badi, p. 174).