Kaushitaki Upanishad 4.16.1

4.16.1

sa hovāca bālākir ya evaiṣa śarīre puruṣas tam evāham upāsa iti /

16 (15). Then said Bālāki: ‘Him who is this person in the body—him indeed I reverence.’ To him then Ajātaśatru said: ‘Make me not to converse on him! As Prajāpati (Lord of Creation)—thus, verily, I reverence him.’ He then who reverences him thus, becomes procreated (prajāyate) with offspring, cattle, splendor, the luster of sanctity, the heavenly world; he reaches the full term of life (āyu).