Bhagwad Gita
Chapter 7, Verse 8
रसोऽहमप्सु कौन्तेय प्रभास्मि शशिसूर्ययोः।
प्रणवः सर्ववेदेषु शब्दः खे पौरुषं नृषु।।7.8।।
O son of Kunti [Arjuna], I am the taste of water, the light of the sun and the moon, the syllable om in the Vedic mantras; I am the sound in ether and ability in man.