Jaiminīya Upaniṣad Brāhmaṇa 3.28.3

3.28.3

eso 'nto 'taḥ paraḥ pravāho nāsti
yān u kāṁś cātaḥ prāco lokān abhyavādiṣma te sarva āptā bhavanti te jitās teṣv asya sarveṣu kāmacāro bhavati ya evaṃ veda /

This is the end; beyond this there is no carrying forward.
Whatever worlds east of this we have mentioned, all of them become attained, they are won; in all of them he has freedom of movement according to his desire, who knows thus.