स होवाच तथा नस्त्वं तत जानीथा यथा यदहं किंच वेद सर्वमहं तत्तुभमवोचम् ।प्रेहि तु तत्र ।प्रतीत्य ब्रह्मचर्यं वत्स्याव इति ।भवानेव गच्छत्विति ।स आजगाम गौतमो यत्र प्रवाहणस्य जैवलेरास ।तस्मा आसनमाहृत्योदकमाहारयां चकार ।अथ हास्मा अर्घ्यं चकार ।तं होवाच वरं भगवते गौतमाय दद्म इति ॥६,२.४ ॥
In plain words
His father said, "Thou shouldst know me well enough, my son, to know that whatever I know I have told thee all. But come, let us go there and live as students of sacred knowledge." "Go thou thyself, sir." So Gautama went to where Pravāhaṇa Jaivali was. He had a seat brought for him and had water fetched, and made him the guest-offering, and said, "We give a boon to the reverend Gautama."
The commentators
Bṛhadāraṇyakopaniṣadbhāṣyam· bhāṣya
स होवाच पिता पुत्रं क्रुद्धमुपशमयन्-तथा तेन प्रकारेण नः अस्मान् त्वम्, हे तात वत्स, जानीथा गृहीथाः, यथा यदहं किंच विज्ञानजातं वेद सर्वं तत् तुभ्यम् अवोचम् इत्येव जानीथाः ; कोऽन्यो मम प्रियतरोऽस्ति त्वत्तः, यस्मै रक्षिष्ये ; अहमपि एतत् न जानामि, यत् राज्ञा पृष्टम् ;
In plain words
He said — the father, calming his angry son — 'Know this about me, dear child: jānīthāḥ just means understand — understand that whatever I know, every bit of it, I have already given to you. Who could possibly be dearer to me than you, that I would hold something back from you? I myself don't know the answer to what the king asked;'
Close to the Sanskrit
He said, the father pacifying his angry son — 'in that manner, you should know us, me, O dear child, dear one — jānīthāḥ means gṛhīthāḥ, you should grasp — that is: whatever store of knowledge I know, all of that I told you — you should understand it exactly so. Who else is dearer to me than you, for whose sake I would withhold anything? I myself do not know this, that which was asked by the king;'