Taittirīya Upaniṣad 3.6.1

3.6.1

ānando brahmeti vyajānāt /
ānandādhyeva khalvimāni bhūtāni jāyante /
ānandena jātāni jīvanti /
ānandaṃ prayantyabhisam̐viśantīti /
saiṣā bhārgavī vāruṇī vidyā /
parame vyomanpratiṣṭhitā /
sa ya evaṃ veda pratitiṣṭhati /
annavānannādo bhavati /
mahānbhavati prajayā paśubhirbrahmavarcasena /
mahān kīrtyā // 1//
iti ṣaṣtho 'nuvākaḥ //

This is the knowledge of Bhṛgu Vāruṇi, established in the highest heaven. He who knows this, becomes established. He becomes an eater of food, possessing food. He becomes great in offspring, in cattle, in the splendor of sacred knowledge, great in fame.