At Sāvatthī.

“Mendicants, I will teach you the things that should be completely understood, complete understanding, and the person who has completely understood. Listen …

And what things should be completely understood? Form, feeling, perception, choices, and consciousness. These are called the things that should be completely understood.

And what is complete understanding? The ending of greed, hate, and delusion. This is called complete understanding.

And what is the person who has completely understood? It should be said: a perfected one, the venerable of such and such name and clan. This is called the person who has completely understood.”