Bhagavad Gita 7.8

रसोऽहमप्सु कौन्तेय प्रभासामि शशिसूर्ययोः |
प्रणव: सर्ववेदेषु शब्द: खे पौरूषं नृषु

Translation

I am the taste in water, O son of Kunti, and the radiance of the sun and the moon. I am the sacred syllable Om in the Vedic mantras; I am the sound in ether, and the ability in humans.