Vishnupurana 4.1.p4

4.1.p4

One day while she was walking near the hermitage of Buddha, he became attached to her and begot on her a son named Pururavas. After his birth, the noble Rishis, desiring to restore Sudyumna to his sex, prayed to the glorious Vishnu who is the essence of the four Vedas, of mind, of every thing and of nothing and who is the sacrificed male. By his mercy Ilā once more became Sudyumna, in which character he had three sons, Utkala, Gaya and Vinata.