Uttarajjhayana 74.1.22

74.1.22

āsaṇagao na pucchejjā | neva sejjāgao kayā /
āgammukkuḍuo santo | pucchijjā paṃjalīuḍo ||22||

If spoken to by the superior, he should never remain silent, but should consider it as a favour; asking for his command, he should always politely approach his teacher. (20)
If the teacher speaks little or much, he should never grow impatient; but an intelligent pupil should rise from his seat and answer (the teacher's) call modestly and attentively. (21)
He should never ask a question when sitting on his stool or his bed, but rising from his seat and coming near, he should ask him with folded hands. (22)
When a pupil who observes the above rules of conduct, questions the teacher about the sacred text, its meaning, or both, he should deliver it according to tradition. (23)
A monk should avoid untruth, nor should he speak positively (about future things, his plans, &c.); he should avoid sinful speech, and always keep free from deceit. (24)
He should not tell anything sinful or meaningless or hurtful, neither for his own sake nor for anybody else's, nor without such a motive. (25).
In barbers' shops or houses, on the ground separating two houses, or on the highway a single monk should not stand with a single woman, nor should he converse with her. (26)
Any instruction the wise ones may give me in a kind or a rough way, I shall devotedly accept, thinking that it is for my benefit. (27)
(The teacher's) instruction, his manner of giving it, and his blaming evil acts are considered blissful by the intelligent, but hateful by the bad monk. (28)