Mahabharata 5.41.8

5.41.8

vaiśaṃpāyana uvāca |
cintayāmāsa vidurastamṛṣiṃ saṃśitavratam |
sa ca taccintitaṃ jñātvā darśayāmāsa bhārata || 8 ||

"Vaisampayana said, 'Then Vidura began to think of that Rishi of rigid vows. And knowing that he was thought of, the Rishi, O Bharata, showed himself there. Vidura then received him with the rites prescribed by ordinance. And when, having rested a while, the Rishi was seated at his ease, Vidura addressed him, saying, 'O illustrious one, there is a doubt in Dhritarashtra's mind which is incapable of being explained away by me. It behoveth thee, therefore, to expound it, so that listening to thy discourse, this chief of men may tide over all this sorrows, and to that gain and loss, what is agreeable and what disagreeable, decrepitude and death, fright and jealously, hunger and thirst, pride and prosperity, dislike, sleep, lust and wrath, and decrease and increase may all be borne by him!'"