Mbh 3.57.1b

And, O Bharata, recollecting the marks belonging to the celestials, of which she had heard, she thought, ‘Those attributes of the celestials, of which I have heard from the aged, do not pertain to any of these deities present here upon the earth.’ And revolving the matter long in her mind, and reflecting upon it repeatedly, she decided upon seeking the protection of the gods themselves. And bowing down unto them with mind and speech, with folded hands, she addressed them trembling, ‘Since I heard the speech of the swans, I chose the king of the Nishadhas as my lord. For the sake of truth, O, let the gods reveal him to me. And as in thought or word I have never swerved from him, O, let the gods, for the sake of that truth, reveal him to me. And as the gods themselves have destined the ruler of the Nishadhas to be my lord, O, let them, for the sake of that truth, reveal him to me. And as it is for paying homage unto Nala that I have adopted this vow, for the sake of that truth, O, let the gods reveal him unto me, O, let the exalted guardians of the worlds assume their own proper forms, so that I may know the righteous king.’ Hearing these piteous words of Damayanti, and ascertaining her fixed resolve, and fervent love for the king of Nishadhas, the purity of her heart and her inclination and regard and affection for Nala, the gods did as they had been adjured, and assumed their respective attributes as best they could. And thereupon she beheld the celestials unmoistened with perspiration, with winkless eyes, and unfading garlands, unstained with dust, and staying without touching the ground. And Naishadha stood revealed to his shadow, his fading garlands, himself stained with dust and sweat, resting on the ground with winking eyes. And, O Bharata, discerning the gods and the virtuous Nala the daughter of Bhima chose Naishadha according to her truth.