[263] And what, bhikkhus, is right intention (sammāsaṅkappa) that is noble, taintless (anāsava), supramundane (lokuttara), a factor of the path? The thinking, thought, intention, fixing, focusing, application of the mind (citta), and verbal formation (vacīsaṅkhāra) in one whose mind is noble, whose mind is taintless, who possesses the noble path and is developing the noble path — this, bhikkhus, is right intention that is noble, taintless, supramundane, a factor of the path.
He makes an effort to abandon wrong intention and to attain right intention: that is his right effort.
Mindfully he abandons wrong intention; mindfully he enters upon and dwells in right intention: that is his right mindfulness.
Thus these three states run around and circle around right intention, namely: right view, right effort, and right mindfulness.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.