Praśna Upaniṣad ("Six Questions") 3.1

3.1

atha hainaṃ kauśalyaścāśvalāyanaḥ papraccha
bhagavankuta eṣa prāṇo jāyate kathamāyātyasmiñcharīra ātmānaṃ vā pravibhajya
kathaṃ prātiṣṭhate kenotkramate kathaṃ bāhyamabhidhatte kathamadhyātmamiti

1. Then Kausalya Āśvalāyana asked him [i. e. Pippalāda] : [a] 'Whence, Sir, is this life (prāṇa) born? [b] How does it come into this body? [c] And how does it distribute itself (ātmānam), and establish itself? [d] Through what does it depart? [e] How does it relate itself to the external? [f] How with reference to the self?'