an.10.88 Aṅguttara Nikāya (Numbered Discourses)

An Abuser

“Mendicants, any mendicant who abuses and insults their spiritual companions, speaking ill of the noble ones, will, without a doubt, fall into one or other of these ten disasters.
What ten?
They don’t achieve the unachieved. What they have achieved falls away. They don’t refine their good qualities. They overestimate their good qualities, or lead the spiritual life dissatisfied, or commit a corrupt offense, or contract a severe illness, or go mad and lose their mind. They feel lost when they die. And when their body breaks up, after death, they are reborn in a place of loss, a bad place, the underworld, hell.
Any mendicant who abuses and insults their spiritual companions, speaking ill of the noble ones, will, without a doubt, fall into one or other of these ten disasters.”