Mahabharata 3.106.38

गङ्गावतरणे यत्नं सुमहच्चाकरोन्नृपःन चावतारयामास चेष्टमानो यथाबलम्

gaṅgāvataraṇe yatnaṃ sumahaccākaronnṛpaḥna cāvatārayāmāsa ceṣṭamāno yathābalam

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