Paṭhamanāthasutta
“Sanāthā, bhikkhave, viharatha, mā anāthā. Dukkhaṁ, bhikkhave, anātho viharati. Dasayime, bhikkhave, nāthakaraṇā dhammā. Katame dasa? Idha, bhikkhave, bhikkhu sīlavā hoti, pātimokkhasaṁvarasaṁvuto viharati ācāragocarasampanno aṇumattesu vajjesu bhayadassāvī, samādāya sikkhati sikkhāpadesu. Yampi, bhikkhave, bhikkhu sīlavā hoti …pe… samādāya sikkhati sikkhāpadesu, ayampi dhammo nāthakaraṇo.
A Protector (1st)
“Mendicants, you should live with a protector, not without one. Living without a protector is suffering. There are ten qualities that serve as protector. What ten? Firstly, a mendicant is ethical, restrained in the monastic code, conducting themselves well and resorting for alms in suitable places. Seeing danger in the slightest fault, they keep the rules they’ve undertaken. This is a quality that serves as protector.