Bṛhadāraṇyaka Upaniṣad ("Great Forest Teaching") 1.2.5

1.2.5

sa aikṣata yadi vā imamabhimam̐sye kanīyo'nnaṃ kariṣya iti sa tayā vācā tenātmanedam̐ sarvamasṛjata yadidaṃ kiṃcarco yajūm̐ṣi sāmāni cchandām̐si yajñānprajāḥ paśūn | sa yadyadevāsṛjata tattadattumadhriyata sarvaṃ vā attīti tadaditeradititvam̐ sarvasyaitasyāttā bhavati sarvamasyānnaṃ bhavati ya evametadaditeradititvaṃ veda

He thought, 'If I kill him, I shall have but little food.' He therefore brought forth by that speech and by that body (the year) all whatsoever exists, the Rik, the Yagus, the Sâman, the metres, the sacrifices, men, and animals.
And whatever he (Death) brought forth, that he resolved to eat (ad). Verily because he eats everything, therefore is Aditi (Death) called Aditi. He who thus knows why Aditi is called Aditi, becomes an eater of everything, and everything becomes his food.