Chapter 10 · verse 33 · gita.yoga.org

Bhagavad Gita 10.33

अक्षराणामकारोऽस्मि द्वन्द्वः सामासिकस्य च। अहमेवाक्षयः कालो धाताऽहं विश्वतोमुखः

Among the letters of the alphabet, I am the letter 'A' and the dual among compounds. I am verily the inexhaustible and everlasting time; I am the dispenser of the fruits of actions, having faces in all directions.