Bhagavad Gita Chapter 11.9
sañjaya uvāca
evam uktvā tato rājan
mahā-yogeśvaro hariḥ
darśayām āsa pārthāya
paramaḿ rūpam aiśvaram
Translation
Sanjaya said: O King, having spoken thus, the Supreme Lord of all mystic power, the Personality of Godhead, displayed His universal form to Arjuna.