Mbh 1.93.19

“Vaisampayana continued, ‘After this, Ashtaka, impelled by curiosity, again asked his maternal grandfather resembling Indra himself, saying, ‘O king, I ask thee, tell me truly, whence thou art, who thou art, and whose son? Is there any other Brahmana or Kshatriya who hath done what thou didst on earth?’ Yayati answered, ‘I tell thee truly, I am Yayati, the son of Nahusha and the father of Puru. I was lord of all the Earth. Ye are my relatives; I tell thee truly, I am the maternal grandfather of you all. Having conquered the whole earth, I gave clothes to Brahmanas and also a hundred handsome horses fit for sacrificial offering. For such acts of virtue, the gods became propitious to those that perform them. I also gave to Brahmanas this whole earth with her horses and elephants and kine and gold all kinds of wealth, along with a hundred Arbudas of excellent milch cows. Both the earth and the firmament exist owing to my truth and virtue; fire yet burneth in the world of men owing to my truth and virtue. Never hath a word spoken by me been untrue. It is for this that the wise adore Truth. O Ashtaka, all I have told thee, Pratardana, and Vasumat, is Truth itself. I know it for certain that the gods and the Rishis and all the mansions of the blessed are adorable only because of Truth that characteriseth them all. He that will without malice duly read unto good Brahmanas his account of our ascension to heaven shall himself attain to the same worlds with us.’