Atharvaśiras Upaniṣad 40

40

yo 'gnau rudro yo 'psv antar ya oṣadhīr vīrudha āviveśa /
ya imā viśvā bhuvanāni caklape tasmai rudrāya namo 'stv agnaye /
yo rudro 'gnau yo rudro 'psv antar yo rudra oṣadhīr vīrudha āviveśa /
yo rudra imā viśvā bhuvanāni caklape tasmai rudrāya namonamaḥ /
yo rudro 'psu yo rudra oṣadhiṣu yo rudro vanaspatiṣu /
yena rudreṇa jagad ūrdhvaṃ dhāritaṃ pṛthivī dvidhā tridhā dhartā dhāritā nāgā ye 'ntarikṣe tasmai rudrāya vai namonamaḥ /
mūrdhānam asya saṃsevyāpy atharvā hṛdayaṃ ca yat /
mastiṣkād ūrdhvaṃ prerayaty avamāno 'dhiśīrṣataḥ //