Bhagwad Gita
Chapter 10, Verse 15
स्वयमेवात्मनाऽत्मानं वेत्थ त्वं पुरुषोत्तम।
भूतभावन भूतेश देवदेव जगत्पते।।10.15।।
Indeed, You alone know Yourself by Your own potencies, O origin of all, Lord of all beings, God of gods, O Supreme Person, Lord of the universe!