Mbh 5.195.2b

Having, in the midst of his counsellors, been made by that priest to hear those words fraught with censure and uttered by the ruler of the Dasarnakas, king Drupada then, O chief of Bharata’s race, assuming a mild behaviour from motives of friendship, said, ‘The reply to these words of my brother that thou hast said unto me, O Brahmana, will be carried to that monarch by my envoy!’ And king Drupada then, sent unto the high-souled Hiranyavarman a Brahmana learned in the Vedas as his envoy. And that envoy, going unto king Hiranyavarman, the ruler of the Dasarnakas, said unto him, O monarch, the word that Drupada had entrusted him with. And he said, ‘This my child is really a male. Let it be made clear by means of witness! Somebody has spoken falsely to thee. That should not be believed!’ Then the king of the Dasarnakas, having heard the words of Drupada, was filled with sorrow and despatched a number of young ladies of great beauty for ascertaining whether Sikhandin was a male or female. Despatched by him, those ladies, having ascertained (the truth) joyfully told the king of the Dasarnakas everything, viz., that Sikhandin, O chief of the Kurus, was a powerful person of the masculine sex. Hearing that testimony, the ruler of the Dasarnakas was filled with great joy, and wending then unto his brother Drupada, passed a few days with him in joy. And the king, rejoiced as he was, gave unto Sikhandin much wealth, many elephants and steeds and kine. And worshipped by Drupada (as long as he stayed), the Dasarnaka king then departed, having rebuked his daughter. And after king Hiranyavarman, the ruler of the Dasarnakas had departed in joy and with his anger quelled, Sikhandin began to rejoice exceedingly. Meanwhile, sometime after (the exchange of sexes had taken place) Kuvera, who was always borne on the shoulders of human beings, in course of a journey (through the earth), came to the abode of Sthuna.