Kauṣītaki Upaniṣad 2.13.16

2.13.16

tatho evaivaṃ vidvān prāṇe niḥśreyasaṃ viditvā [sarveṣāṃ bhūtānāṃ] prāṇam eva prajñātmānam abhisambhūya sahaivaitaiḥ sarvair asmāc charīrād utkrāmati /

Likewise also, indeed, he who knows this, having recognized the superior excellence in the vital breath, having passed into the vital breath, even the intelligential self, of all beings, goes forth from this body along with all these. He, having entered into the wind, having the nature of space, goes to heaven. He goes to that [place] where these gods are. Having reached that, he becomes immortal as the gods are immortal—he who knows this.