Dhammapada · 4.14
Tesaṃ sampannasīlānaṃ, appamādavihārinaṃ;Sammadaññā vimuttānaṃ, māro maggaṃ na vindati.
Tesam sampannasilanam, appamadaviharinam; Sammadanna vimuttanam, maro maggam na vindati.
Mara cannot find the track of those perfected in virtue, abiding in heedfulness, and freed through right understanding.
— Dhammapada 4.14
Source: Pali text from the Khuddaka Nikāya of the Pali Canon (oldest extant Buddhist scripture, compiled c. 3rd century BCE). Public-domain English readings drawn from F. Max Müller's translation in Sacred Books of the East, Vol X (1881) and the Buddhist Publication Society's freely-licensed Acharya Buddharakkhita rendering.