श्रुतंह्येव मे भगवद्दृशेभ्य आचार्याद्धैव विद्या विदिता साधिष्ठं प्रापतीति तस्मै हैतदेवोवाचात्र ह न किंचन वीयायेति वीयायेति ॥ ४.९.३ ॥
In plain words
For I have heard from those like you, sir, that knowledge learned from a teacher leads best to the goal." And he told him this very thing; and in it nothing at all was left out — nothing was left out.