Mbh 2.66.24a

Vaisampayana continued,--“Hearing these terrible words of Bhima that made the down of the auditors to stand on end, everybody present there applauded him and censured the son of Dhritarashtra. And when a mass of clothes had been gathered in that assembly, all dragged from the person of Draupadi, Dussasana, tired and ashamed, sat down. And beholding the sons of Kunti in that state, the persons--those gods among men--that were in that assembly all uttered the word ‘Fie!’(on the son of Dhritarashtra). And the united voices of all became so loud that they made the down of anybody who heard them stand on end. And all the honest men that were in that assembly began to say,--‘Alas! the Kauravas answer not the question that hath been put to them by Draupadi. And all censuring Dhritarashtra together, made a loud clamour. Then Vidura, that master of the science of morality, waving his hands and silencing every one, spake these words;--‘Ye that are in this assembly, Draupadi having put her question is weeping helplessly. Ye are not answering her. Virtue and morality are being persecuted by such conduct. An afflicted person approacheth an assembly of good men, like one that is being consumed by fire. They that are in the assembly quench that fire and cool him by means of truth and morality. The afflicted person asketh the assembly about his rights, as sanctioned by morality. They that are in the assembly should, unmoved by interest and anger, answer the question. Ye kings, Vikarna hath answered the question, according to his own knowledge and judgment. Ye should also answer it as ye think proper. Knowing the rules of morality, and having attended an assembly, he that doth not answer a query that is put, incurreth half the demerit that attacheth to a lie. He, on the other hand, who, knowing the rules of morality and having joined an assembly answereth falsely, assuredly incurreth the sin of a lie.