Cullavagga 4.14.3.9

4.14.3.9

sikkhāyapi na paripūrakārī, so saṅghe vivādaṃ janeti.

'What is that which gives rise to a legal question of dispute? There are six causes of dispute that give rise to legal questions of dispute. And there are three causes of wrong-doing that give rise to legal questions of dispute, and three causes of right-doing that give rise to legal questions of dispute. And which are these six?
'In the first place, O Bhikkhus, there is the Bhikkhu who is angry, and who bears enmity in his heart. Whatsoever Bhikkhu, O Bhikkhus, is such an angry man bearing enmity in his heart, he remains without reverence for, and without delight in the Teacher, the Dhamma, and the Samgha, and does not fulfil all the duties of a disciple. And whatsoever Bhikkhu, O Bhikkhus, remains without reverence for, and without delight in the Teacher, the Dhamma, and the Samgha, and does not fulfil all the duties of a disciple, he causes disputes to arise in the Samgha, and such a dispute becomes a cause of woe, and of want, and of disaster to the great multitudes, of woe and of want to gods and men. If you, therefore, O Bhikkhus, perceive such a one, a root of disputes both internal and external, do you exert yourselves, O Bhikkhus, to put away from you so evil a person, the root of those disputes. If you perceive, O Bhikkhus, no such person, take pains lest any such evil root of disputes should thereafter arise among you. Thus will so evil a root of disputes be put away from you, and thus will no such evil person, the root of. disputes, arise hereafter among you.
'Again, O Bhikkhus, there is the Bhikkhu, who is a hypocrite, and who hides his faults; who is envious and jealous; who is crafty and treacherous; who has sinful desires and false beliefs; who is tarnished by love of worldly gain, devoted to getting and taking, for whom to renounce a thing is hard. Whatsoever Bhikkhu, O Bhikkhus, is thus a hypocrite, who hides his faults, he remains [&c., as before, the whole of the last paragraph down to the end being repeated in each of the cases here enumerated].