Shloka 76
उभे मूत्रपुरीषे तु दिवा कुर्यादुदड्मुख: । दक्षिणाभिमुखो रात्रौ तथा ह्ायुर्न रिष्यते,मल और मूत्र दोनोंका त्याग दिनमें उत्तराभिमुख होकर करे और रातमें दक्षिणाभिमुख। ऐसा करनेसे आयुका नाश नहीं होता
ubhe mūtrapurīṣe tu divā kuryād udanmukhaḥ | dakṣiṇābhimukho rātrau tathā hy āyur na riṣyate ||
Bhīṣma said: One should relieve oneself of both urine and feces facing north during the daytime, and facing south at night; by observing this rule of proper conduct, one’s longevity is not diminished.
भीष्म उवाच
Educational Q&A
It prescribes a rule of personal conduct (ācāra): during the day one should face north, and at night face south, when relieving oneself; such disciplined observance is said to protect one’s longevity.
In the Anuśāsana Parva, Bhīṣma is instructing Yudhiṣṭhira on dharma through practical injunctions about daily behavior and cleanliness, presenting them as part of righteous living.