Ajjhattikaṅgasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 518

[518] "Bhikkhus, taking it as an internal factor, I do not see any other single factor so conducive to the arising of the seven factors of awakening (bojjhaṅga) as this, bhikkhus: wise attention (yoniso manasikāra). Bhikkhus, for a bhikkhu accomplished in wise attention it can be expected that he will develop the seven factors of awakening, that he will cultivate the seven factors of awakening."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.