Mbh 3.53.1b

And the large-eyed damsel was possessed of great beauty like that of Sree herself. And neither among celestials, nor among Yakshas, nor among men was anybody possessed of such beauty, seen or heard of before. And the beautiful maiden filled with gladness the hearts of even the gods. And that tiger among men, Nala also had not his peer in the (three) worlds: for in beauty he was like Kandarpa himself in his embodied form. And moved by admiration, the heralds again and again celebrated the praises of Nala before Damayanti and those of Damayanti before the ruler of the Nishadhas. And repeatedly hearing of each other’s virtues they conceived an attachment towards each other not begot of sight, and that attachment, O son of Kunti began to grow in strength. And then Nala was unable to control the love that was in his bosom. And he began to pass much of his time in solitude in the gardens adjoining the inner apartment (of his palace). And there he saw a number of swans furnished with golden wings, wandering in those woods. And from among them he caught one with his hands. And thereupon the sky-ranging one said unto Nala. ‘Deserve I not to be slain by thee. O king. I will do something that is agreeable to thee. O king of the Nishadhas. I will speak of thee before Damayanti in such a way that she will not ever desire to have any other person (for her lord).’ Thus addressed, the king liberated that swan. And those swans then rose on their wings and went to the country of the Vidarbhas. And on arriving at the city of the Vidarbhas the birds alighted before Damayanti, who beheld them all. And Damayanti in the midst of her maids, beholding those birds of extraordinary appearance was filled with delight, and strove without loss of time to catch those coursers of the skies. And the swans at this, before that bevy of beauties, fled in all directions. And those maidens there pursued the birds, each (running) after one.