Mbh 3.186.2c

And whilst there, O beloved of the Munis, thou shall wait for me, and I shall appear to thee like a horned animal, and thus, O ascetic, shall thou recognise me! And I shall now depart, and thou shall act according to my instructions, for, without my assistance, thou canst not save thyself from that fearful flood.’ Then Manu said unto the fish, ‘I do not doubt all that thou hast said, O great one! Even so shall I act!’ And giving instructions to each other, they both went away. And Manu then, O great and powerful king and conqueror of thy enemies, procured all the different seeds as directed by the fish, and set sail in an excellent vessel on the surging sea. And then, O lord of the earth, he bethought himself of that fish. And the fish too, O conqueror of thy enemies and foremost scion of Bharata’s race, knowing his mind, appeared there with horns on his head. And then, O tiger among men, beholding in the ocean that horned fish emerging like a rock in the form of which he had been before appraised, he lowered the ropy noose on its head. And fastened by the noose, the fish, O king and conqueror of hostile cities, towed the ark with great force through the salt waters. And it conveyed them in that vessel on the roaring and billow beaten sea. And, O conqueror of thy enemies and hostile cities, tossed by the tempest on the great ocean, the vessel reeled about like a drunken harlot. And neither land nor the four cardinal points of the compass, could be distinguished.