Adhyāya 166: Kṛtaghna-doṣa (कृतघ्नदोषः) — the fault of ingratitude and the limits of expiation
न नर्मयुक्तमनृतं हिनस्ति न स्त्रीषु राजन् न विवाहकाले | न गुर्वर्थ नात्मनो जीवितार्थे पज्चानृतान्याहुरपातकानि
na narmayuktam anṛtaṁ hinasti na strīṣu rājan na vivāhakāle | na gurvarthe nātmano jīvitārthe pañcānṛtāny āhur apātakāni rājan ||
Bhishma said: “O King, an untruth spoken in jest does not cause harm; nor does one spoken to a woman, nor at the time of marriage. Likewise, an untruth spoken for the sake of one’s teacher’s welfare, or to save one’s own life, is not regarded as blameworthy. These five occasions, O King, are declared to be instances where speaking untruth is not counted as a sin.”
भीष्म उवाच
Truthfulness is a central virtue, yet Bhishma notes limited, context-bound exceptions where speaking an untruth is not treated as sinful: in jest, in certain speech with women, during marriage arrangements, for a teacher’s welfare, and to save one’s life.
In the Śānti Parva’s dharma instruction, Bhishma is advising King Yudhiṣṭhira on ethical conduct, specifically the nuanced rules governing speech and when strict truth-telling may be relaxed without incurring sin.