Mahabharata 7.69.69

ब्रह्मसूत्रेण बध्नामि कवचं तव पार्थिवहिरण्यगर्भेण यथा बद्धं विष्णोः पुरा रणे

brahmasūtreṇa badhnāmi kavacaṃ tava pārthivahiraṇyagarbheṇa yathā baddhaṃ viṣṇoḥ purā raṇe

Our plain-language meaning of this verse is waiting for scholar review.