The works of Ādi Śaṅkarācārya

Chāndogyopaniṣadbhāṣyam

Verse 234

म होवाच किं मेऽन्नं भविष्यतीतियत्किंचिदिदमा श्वभ्य आ शकुनिभ्यइति होचुस्तद्वा एतदनस्यान्नमनो ह वैनाम प्रत्यक्षं न ह वा एवंविदि किंचनानन्नंभवतीति ॥ १ ॥

In plain words

He asked, 'What shall be my food?' They replied, 'Whatever exists, down to dogs and up to birds.' That indeed is the food of Anas (the vital breath); for Ana is manifestly known. For one who knows thus, nothing whatsoever becomes unacceptable food.

Close to the Sanskrit

He said: 'What will be my food?' 'Whatever this is, up to dogs, up to birds,' they said. That indeed is the food of Anas (breath); Ana indeed by name is manifest; for one knowing thus, anything whatsoever does not become non-food.