[307] Bhikkhus, there are these six roots of dispute (vivādamūla). What six? Here, bhikkhus, a bhikkhu is angry (kodhano) and bears a grudge (upanāhī). Bhikkhus, whatever bhikkhu is angry and bears a grudge, he dwells without reverence and without deference toward the Teacher, dwells without reverence and without deference toward the Dhamma, dwells without reverence and without deference toward the Saṅgha, and does not fulfil the training (sikkhā). Bhikkhus, a bhikkhu who dwells without reverence and without deference toward the Teacher, who dwells without reverence and without deference toward the Dhamma, who dwells without reverence and without deference toward the Saṅgha, and who does not fulfil the training, creates a dispute in the Saṅgha — a dispute which is for the harm of many people, for the unhappiness of many people, for the ruin, harm, and suffering (dukkha) of many people, of devas and human beings. If, bhikkhus, you should see such a root of dispute either internally or externally, then, bhikkhus, you should strive for the abandoning of that same evil root of dispute. And if, bhikkhus, you should not see such a root of dispute either internally or externally, then, bhikkhus, you should practise so that that same evil root of dispute does not continue in the future. Thus there is the abandoning of that evil root of dispute; thus there is the non-continuance of that evil root of dispute in the future.
Again, bhikkhus, a bhikkhu is denigrating and domineering … he is envious and miserly; he is deceitful and hypocritical; he has evil desires and wrong view; he adheres to his own views, holds to them tenaciously, and relinquishes them with difficulty. Bhikkhus, whatever bhikkhu adheres to his own views, holds to them tenaciously, and relinquishes them with difficulty, he dwells without reverence and without deference toward the Teacher, dwells without reverence and without deference toward the Dhamma, dwells without reverence and without deference toward the Saṅgha, and does not fulfil the training. Bhikkhus, a bhikkhu who dwells without reverence and without deference toward the Teacher … who does not fulfil the training, creates a dispute in the Saṅgha — a dispute which is for the harm of many people, for the unhappiness of many people, for the ruin, harm, and suffering of many people, of devas and human beings. If, bhikkhus, you should see such a root of dispute either internally or externally, then, bhikkhus, you should strive for the abandoning of that same evil root of dispute. And if, bhikkhus, you should not see such a root of dispute either internally or externally, then, bhikkhus, you should practise so that that same evil root of dispute does not continue in the future. Thus there is the abandoning of that evil root of dispute; thus there is the non-continuance of that evil root of dispute in the future.
These, bhikkhus, are the six roots of dispute.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.