[41] Then the Venerable Upāli approached the Blessed One; having approached, he paid homage to the Blessed One and sat down to one side. Seated to one side, the Venerable Upāli said this to the Blessed One: "Venerable sir, what is the cause, what is the condition, whereby contention, quarrels, disputes, and arguments arise in the Saṅgha, so that bhikkhus do not dwell at ease?"
"Here, Upāli, bhikkhus explain what is not Dhamma as 'Dhamma'; they explain what is Dhamma as 'not Dhamma'; they explain what is not the Discipline (vinaya) as 'the Discipline'; they explain what is the Discipline as 'not the Discipline'; they explain what was not spoken and not uttered by the Tathāgata as 'spoken and uttered by the Tathāgata'; they explain what was spoken and uttered by the Tathāgata as 'not spoken and not uttered by the Tathāgata'; they explain what was not practised by the Tathāgata as 'practised by the Tathāgata'; they explain what was practised by the Tathāgata as 'not practised by the Tathāgata'; they explain what was not prescribed by the Tathāgata as 'prescribed by the Tathāgata'; they explain what was prescribed by the Tathāgata as 'not prescribed by the Tathāgata'. This, Upāli, is the cause, this is the condition, whereby contention, quarrels, disputes, and arguments arise in the Saṅgha, so that bhikkhus do not dwell at ease."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.