Mbh 12.55.1

"Vaisampayana said, 'Endued with great energy, the delighter of the Kurus (viz., Bhishma), said, "I shall discourse on the subject of duty. My speech and mind have become steady, through thy grace, O Govinda, since thou art the eternal soul of every being. Let the righteous-souled Yudhishthira question me about morality and duty. I shall then be much gratified and shall speak of all duties. Let the son of Pandu, that royal sage of virtuous and great soul, upon whose birth all the Vrishnis were filled with joy, question me. Let the son of Pandu, who has no equal among all the Kurus, among all persons of righteous behaviour, and among men of great celebrity, put questions to me. Let the son of Pandu, in whom are intelligence, self-restraint, Brahmacharya, forgiveness, righteousness, mental vigour and energy, put questions to me. Let the son of Pandu, who always by his good offices honours his relatives and guests and servants and others that are dependent on him, put questions to me. Let the son of Pandu, in whom are truth and charity and penances, heroism, peacefulness, cleverness, and fearlessness, put questions to me. Let the righteous-souled son of Pandu, who would never commit a sin influenced by desire of Pleasure or Profit or from fear put questions to me. Let the son of Pandu, who is ever devoted to truth, to forgiveness, to knowledge and to guests, and who always makes gifts unto the righteous, put questions to me. Let the son of Pandu, who is ever engaged in sacrifices and study of the Vedas and the practice of morality and duty who is ever peaceful and who has heard all mysteries, put questions to me."