The works of Ādi Śaṅkarācārya

Bṛhadāraṇyakopaniṣadbhāṣyam

Verse 90

सा होवाच मैत्रेयी येनाहं नामृता स्यांकिमहं तेन कुर्यां यदेव भगवान्वेद तदेवमे ब्रूहीति ॥ ३ ॥

In plain words

Maitreyī said, "What use is anything to me that won't make me immortal? Just tell me what you actually know."

Close to the Sanskrit

She, Maitreyī, said: "What should I do with that by which I would not become immortal? Tell me exactly what you, venerable one, know."