This was said by the Blessed One, said by the Arahant, as I have heard:
“Bhikkhus, abandon one thing; I am your guarantor for non-returning. What one thing? Bhikkhus, abandon |anger::rage, wrath, fury, indignation [kodha]|; I am your guarantor for non-returning.”
The Blessed One spoke on this matter. In this regard, it is said:
“When overcome by anger,
beings go to a bad destination;
Completely comprehending anger,
those with insight abandon it;
Having abandoned it, they do not come again,
to this world at any time.”
This matter too was spoken by the Blessed One, as I have heard.