Dhammānudhammapaṭipannasutta
Vuttañhetaṁ bhagavatā vuttamarahatāti me sutaṁ:This was said by the Blessed One, said by the Arahant, so I have heard:
“Dhammānudhammapaṭipannassa bhikkhuno ayamanudhammo hoti veyyākaraṇāya—“Monks, with reference to a monk who practices the Dhamma in accordance with the Dhamma, dhammānudhammapaṭipannoyanti bhāsamāno dhammaññeva bhāsati no adhammaṁ, vitakkayamāno vā dhammavitakkaññeva vitakketi no adhammavitakkaṁ, tadubhayaṁ vā pana abhinivejjetvā upekkhako viharati sato sampajāno”ti.it is this way of according with the Dhamma that he should be described as practicing the Dhamma in accordance with the Dhamma. When speaking, he speaks Dhamma and not non-Dhamma. When thinking, he thinks about Dhamma and not about non-Dhamma. Avoiding both these things, he stays equanimous, mindful, alert.”
Etamatthaṁ bhagavā avoca. Tatthetaṁ iti vuccati:
“Dhammārāmo dhammarato, dhammaṁ anuvicintayaṁ;Dhamma his dwelling, Dhamma his delight, a monk pondering Dhamma, Dhammaṁ anussaraṁ bhikkhu, saddhammā na parihāyati.calling Dhamma to mind, doesn’t fall away from true Dhamma.
Caraṁ vā yadi vā tiṭṭhaṁ, nisinno uda vā sayaṁ;Whether walking, standing, sitting, or lying down Ajjhattaṁ samayaṁ cittaṁ, santimevādhigacchatī”ti.–his mind inwardly restrained– he arrives right at peace.