Muṇḍaka Upaniṣad 2.2.13

Muṇḍakopaniṣadbhāṣya 2.2.13

1.2.13
tasmai sa vidvānupasannāya samyakpraśāntacittāya śamānvitāya| yenākṣaraṃ puruṣaṃ veda satyaṃprovāca tāṃ tattvato brahmavidyām ||