Bāṣkala Upaniṣad 23

23

ahaṃ jyotir aham ṛtaṃ vinaddhir ahaṃ jātaṃ jani janiṣyamāṇam /
ahaṃ tvam aham ahaṃ tvam in nu tvam ahaṃ cakṣva vicikitsīr ma ṛjvā //23//

I am the light, I am the cosmic order bound fast, I am what is born, what is being born, and what is yet to be born. / I am you, I am I, you are indeed I; look at me as you, do not doubt me with straight mind. //23