Mahabharata 3.221.6

ऐरावतं समास्थाय शक्रश्चापि सुरैः सहपृष्ठतोऽनुययौ यान्तं वरदं वृषभध्वजम्

airāvataṃ samāsthāya śakraścāpi suraiḥ sahapṛṣṭhato'nuyayau yāntaṃ varadaṃ vṛṣabhadhvajam

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