Mahabharata 3.185.22

3.185.22

uddhṛtya gaṅgāsalilāttato matsyaṃ manuḥ svayam |
samudramanayatpārtha tatra cainamavāsṛjat || 22 ||

And after a long while, it became so large in size, that there was no room for it in that vessel. And then seeing Manu (one day), it again addressed these words to him, 'Worshipful sir, do thou appoint some better habitation for me.' And then the adorable Manu, the conqueror of hostile cities, took it out of that vessel and carried it to a large tank and placed it there. And there again the fish grew for many a long year. And although the tank was two yojanas in length and one yojana in width, even there, O lotus-eyed son of Kunti and ruler of men, was no room for the fish to play about! And beholding Manu it said again, 'O pious and adorable father, take me to the Ganga, the favourite spouse of the Ocean so that I may live there; or do as thou listest. O sinless one, as I have grown to this great bulk by thy favour I shall do thy bidding cheerfully.' Thus asked the upright and continent and worshipful Manu took the fish to the river Ganga and he put it into the river with his own hands. And there, O conqueror of thy enemies, the fish again grew for some little time and then beholding Manu, it said again, 'O lord, I am unable to move about in the Ganga on account of my great body; therefore, worshipful sir, do thou please take me quickly to the sea!' O son of Pritha, Manu then taking it out of the Ganga, carried it to the sea and consigned it there. And despite its great bulk, Manu transported it easily and its touch and smell were also pleasant to him.