Chandogya Upanishad 4.21

तस्म उ ह ददुस्ते वा एते पञ्चान्ये पञ्चान्ये दश सन्तस्तत्कृतं तस्मात्सर्वासु दिक्ष्वन्नमेव दश कृतꣳ सैषा विराडन्नादी तयेदꣳ सर्वं दृष्टꣳ सर्वमस्येदं दृष्टं भवत्यन्नादो भवति य एवं वेद य एवं वेद ॥ ८ ॥

4.3.8 — tasma u ha daduste va ete panchanye panchanye dasha santastatkritam tasmatsarvasu dikshvannameva dasha kritam saisha viradannadi tayedam sarvam drishtam sarvamasyedam drishtam bhavatyannado bhavati ya evam veda ya evam veda || 8 ||

They gave him food. Now these five (the eater Vâyu (air), and his food, Agni (fire), Âditya (sun), Kandramas (moon), Ap (water)) and the other five (the eater Prâna (breath), and his food, speech, sight, hearing, mind) make ten, and that is the Krita. (the highest) cast (representing the ten, the eaters and the food). Therefore in all quarters those ten are food (and) Krita. (the highest cast). These are again the Virâg (of ten syllables) ​which eats the food. Through this all this becomes seen. He who knows this sees all this and becomes an eater of food, yea, he becomes an eater of food.

उन्होंने उसे भिक्षा दी। ये पाँच (वायु, अग्नि, आदित्य, चन्द्र, जल) तथा दूसरे पाँच (प्राण, वाक्, चक्षु, श्रोत्र, मन) मिलाकर दस होते हैं — यही कृत (पासे का सर्वोच्च दाँव) है; इसलिए सब दिशाओं में अन्न ही दशधा कृत है। यही विराट् अन्नादिनी है; इसी से यह सब दृष्ट है, इसी को यह सब दृष्ट हो जाता है, और जो ऐसा जानता है वह अन्नाद (अन्न का भोक्ता) हो जाता है — हाँ, अन्नाद हो जाता है।