Mahabharata Udyoga Parva Chapter 195:3

Mahabharata Udyoga Parva (Uluka Dutagamana Parva) Chapter 195:3 And since that wicked-souled one, knowing I am here, approacheth me not, therefore, some severe punishment should be inflicted on him! Even this is my intention!' Hearing these words of his, the Yakshas said, 'O king, the royal Drupada had a daughter born unto him, of the name of Sikhandini! Unto her, for some reason, Sthuna had given his own manhood, and having taken her womanhood upon him, he stayeth within his abode having become a woman! Bearing as he doth a feminine form, he doth not, therefore, approach thee in shame! It is for this reason, O king, that Sthuna cometh not to thee! Hearing all this, do what may be proper! Let the car be stopped here! Let Sthuna be brought to me,'—were the words that the lord of the Yakshas uttered, and repeatedly said,—I will punish him!—Summoned then by the Lord of Yakshas, Sthuna bearing a feminine form came thither, O king, and stood before him in shame. Then, O thou of Kuru's race, the giver of wealth cursed him in anger, saying, 'Ye Guhyakas, let the femininity of the wretch remain as it is!' And the high-souled lord of the Yakshas also said, 'Since humiliating all the Yakshas, thou hast, O thou of sinful deeds, given away thy own sex to Sikhandini and taken from her, O thou of wicked understanding, her femininity,—since, O wicked wretch, thou hast done what hath never been done by anybody,—therefore from this day, thou shalt remain a woman and she shall remain a man!' At these words of his, all the Yakshas began to soften Vaisravana for the sake of Sthunakarna repeatedly saying, 'Set a limit to thy curse!' The high-souled lord of the Yakshas then said unto all these Yakshas that followed him, from desire of setting a limit to his curse, these words, viz.,—After Sikhandin's death, ye Yakshas, this one will regain his own form! Therefore, let this high-souled Yaksha Sthuna be freed from his anxiety! Having said this, the illustrious and divine king of the Yakshas, receiving due worship, departed with all his followers who were capable of traversing a great distance within the shortest space of time. And Sthuna, with that curse pronounced on him, continued to live there. And when the time came, Sikhandin without losing a moment came unto that wanderer of the night. And approaching his presence he said, 'I have come to thee, O holy one!' Sthuna then repeatedly said unto him, 'I am pleased with thee!' Indeed, beholding that prince return to him without guile, Sthuna told Sikhandin everything that had happened. Indeed, the Yaksha said, 'O son of a king, for thee I have been cursed by Vaisravana. Go now, and live happily amongst men as thou choosest. Thy coming here and the arrival of Pulastya's son were, I think, both ordained from beforehand. All this was incapable of being prevented! Bhishma continued, "Thus addressed by the Yaksha Sthuna, Sikhandin, O Bharata, came to his city, filled with great joy.