The works of Ādi Śaṅkarācārya

Chāndogyopaniṣadbhāṣyam

Verse 323

अधीहि भगव इति होपससाद सन-त्कुमारं नारदस्तँ होवाच यद्वेत्थ तेनमोपसीद ततस्त ऊर्ध्वं वक्ष्यामीति सहोवाच ॥ १ ॥

In plain words

'Teach me, revered sir,' pleaded Nārada, approaching Sanatkumāra. The sage said to him: 'Approach me first with what you already know; whatever lies beyond that, I will impart to you.'

Close to the Sanskrit

'Teach me, O Lord,' thus Nārada approached Sanatkumāra. To him he said: 'Whatever you know, approach me with that; beyond that I will speak to you.' He spoke thus.