Aparihāniyasutta
“Chayime, bhikkhave, aparihāniye dhamme desessāmi, taṁ suṇātha …pe… katame ca, bhikkhave, cha aparihāniyā dhammā? Na kammārāmatā, na bhassārāmatā, na niddārāmatā, na saṅgaṇikārāmatā, sovacassatā, kalyāṇamittatā— ime kho, bhikkhave, cha aparihāniyā dhammā.
Non-decline
“Mendicants, I will teach you these six principles that prevent decline. … And what, mendicants, are the six principles that prevent decline? Not relishing work, talk, sleep, and company, being easy to admonish, and having good friends. These six qualities prevent decline.