Skandapurana 17.18.93_47

17.18.93_47

tathā ca kṛtavāndevo matsyarūpaṃ jale mahat ..
vedānsamānayāmāsa dadau ca brahmaṇe purā ..
kūrmarūpaṃ punaḥ kṛtvā maṃdaraṃ dhārayiṣyasi .. 55 ..

And the Lord did so, assuming the great form of a fish in the water; / he brought together the Vedas and gave them to Brahmā long ago. / "Assuming again the form of a tortoise, you will support Mount Mandara;