Mahabharata 3.42.25

ततो जलधरश्यामो वरुणो यादसां पतिःपश्चिमां दिशमास्थाय गिरमुच्चारयन्प्रभुः

tato jaladharaśyāmo varuṇo yādasāṃ patiḥpaścimāṃ diśamāsthāya giramuccārayanprabhuḥ

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