Kaushitaki Upanishad 4.5

4.5.1

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

5. Then said Bālāki: 'Him who is this person in the lightning—him indeed I reverence.' To him then Ajātaśatru said: 'Make me not to converse on him! As the soul of Truth—thus, verily, I reverence him.' He then who reverences him thus, becomes the soul of truth.

4.5.2

taṃ hovācājātaśatrur mā maitasmin saṃvādayiṣṭhāḥ /

4.5.3

tejasa ātmeti vā aham etam upāsa iti /

4.5.4

sa yo haitam evam upāste tejasa ātmā bhavati //5//