Vishnupurana 1.14.49

Thus glorifying Vishńu, and intent in meditation on him, the Prachetasas passed ten thousand years of austerity in the vast ocean; on which Hari, being pleased with them, appeared to them amidst the waters, of the complexion of the full-blown lotus leaf. Beholding him mounted on the king of birds, Garud́a, the Prachetasas bowed down their heads in devout homage; when Vishńu said to them, "Receive the boon you have desired; for I, the giver of good, am content with you, and am present." The Prachetasas replied to him with reverence, and told him that the cause of their devotions was the command of their father to effect the multiplication of mankind. The god, having accordingly granted to them the object of their prayers, disappeared, and they came up from the water.

Thus glorifying Vishńu, and intent in meditation on him, the Prachetasas passed ten thousand years of austerity in the vast ocean; on which Hari, being pleased with them, appeared to them amidst the waters, of the complexion of the full-blown lotus leaf. Beholding him mounted on the king of birds, Garud́a, the Prachetasas bowed down their heads in devout homage; when Vishńu said to them, "Receive the boon you have desired; for I, the giver of good, am content with you, and am present." The Prachetasas replied to him with reverence, and told him that the cause of their devotions was the command of their father to effect the multiplication of mankind. The god, having accordingly granted to them the object of their prayers, disappeared, and they came up from the water.