Bhagavad Gita 11.9
Sanjaya continued: "Having thus spoken, O King, the Lord Shri Krishna, the Almighty Prince of Wisdom, showed Arjuna the Supreme Form of the Great God.
सञ्जय उवाच
एवमुक्त्वा ततो राजन्महायोगेश्वरो हरिः।
दर्शयामास पार्थाय परमं रूपमैश्वरम्॥sañjaya uvāca
evamuktvā tato rājanmahāyogeśvaro hariḥ|
darśayāmāsa pārthāya paramaṃ rūpamaiśvaram||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).