Mahabharata 5.47.64

5.47.64

ayudhyamāno manasāpi yasya jayaṃ kṛṣṇaḥ puruṣasyābhinandet |
dhruvaṃ sarvānso'bhyatīyādamitrānsendrāndevānmānuṣe nāsti cintā || 64 ||

O Savyasachin, thou shalt have to fight with thy foes. Either Indra riding on his excellent steed and thunderbolt in hand will walk before thee slaying thy foes in battle, or Krishna, the son of Vasudeva will protect thee from behind riding on his car drawn by the steeds headed by Sugriva. Relying on those words, I have, in this battle passing over Indra, the wielder of the thunderbolt, preferred Vasudeva as my ally. That Krishna hath been obtained by me for the destruction of those wicked ones. I see the hand of the gods in all this. The person whose success is only wished for by Krishna, without the latter's actually taking up arms in his behalf, is certain to prevail over all enemies, even if those be the celestials with Indra at their head, while anxiety there is none if they be human. He that wisheth to conquer in battle that foremost of heroes, Vasudeva's son Krishna endued with great energy, wisheth to cross by his two arms alone the great ocean of wide expanse and immeasurable water. He. that wisheth to split by a slap of his palm the high Kailasa mountain, is not able to do the slightest damage to the mountain although his hand only with its nails is sure to wear away.