Mbh 14.56.6

"'Gautama said, "The good that the gratification of the preceptor is the final fee.[171] Without doubt, O regenerate one. I have been highly gratified with thy conduct. Know, O perpetuator of Bhrigu's race, that I have been exceedingly gratified with thee for this. If thou becomest a young man today of sixteen years, I shall bestow on thee, O regenerate one, this my own daughter for becoming thy wife. No other woman save this one is capable of waiting upon thy energy." At these words of Gautama, Utanka once again became a youth and accepted that famous maiden for his wife. Receiving the permission of his preceptor, he then addressed his preceptor's wife, saying,--"What shall I give thee as final fee for my preceptor? Do thou command me. I desire to accomplish, with wealth or even my life, what is agreeable and beneficial to thee. Whatever gem, exceedingly wonderful and of great value, exists in this world, I shall bring for thee with the aid of my penances. I have no doubt in this."