Mahasihanadasutta 18.4

18.4

bhayadassāvī samādāya sikkhati sikkhāpadesu, kāyakammavacīkammena samannāgato kusalena parisuddhājīvo sīlasampanno indriyesu guttadvāro satisampajaññena samannāgato santuṭṭho.

Seeing danger in the slightest fault, a mendicant keeps the rules they’ve undertaken. They act skillfully by body and speech. They’re purified in livelihood and accomplished in ethical conduct. They guard the sense doors, have mindfulness and situational awareness, and are content.