Dasuttarasutta 2.1.5

2.1.5

Idhāvuso, bhikkhu satthāraṃ upanissāya viharati aññataraṃ vā garuṭṭhāniyaṃ sabrahmacāriṃ, yatthassa tibbaṃ hirottappaṃ paccupaṭṭhitaṃ hoti pemañca gāravo ca.

It’s when a mendicant lives relying on the Teacher or a spiritual companion in a teacher’s role. And they set up a keen sense of conscience and prudence for them, with warmth and respect.