Bhagwad Gita
Chapter 11, Verse 50
सञ्जय उवाच
इत्यर्जुनं वासुदेवस्तथोक्त्वा
स्वकं रूपं दर्शयामास भूयः।
आश्वासयामास च भीतमेनं
भूत्वा पुनः सौम्यवपुर्महात्मा।।11.50।।
Sanjaya said to Dhrtarastra: The Supreme Personality of Godhead, Krsna, while speaking thus to Arjuna, displayed His real four-armed form, and at last He showed him His two-armed form, thus encouraging the fearful Arjuna.