Mahabharata 1.29.16
तं वव्रे वाहनं कृष्णो गरुत्मन्तं महाबलम्ध्वजं च चक्रे भगवानुपरि स्थास्यसीति तम्
taṃ vavre vāhanaṃ kṛṣṇo garutmantaṃ mahābalamdhvajaṃ ca cakre bhagavānupari sthāsyasīti tam
Our plain-language meaning of this verse is waiting for scholar review.