Mahabharata — Anushasana Parva, Shloka 456
आचारप्रशंसा
Praise of Ācāra as the Basis of Longevity, Fame, and Prosperity
अकृत्वा देवपूजां च नाचरेद् दन्तधावनम् | सदा एकाग्रचित्त हो दिनमें उत्तरकी ओर मुँह करके ही मल-मूत्रका त्याग करे। दन्तधावन किये बिना देवताओंकी पूजा न करे
akṛtvā devapūjāṃ ca nācared dantadhāvanam | sadā ekāgracitto hi dine uttarakīṃ diśaṃ mukhaṃ kṛtvāiva mala-mūtra-tyāgaṃ kuryāt | dantadhāvanaṃ kṛtvā vinā devān na pūjayet |
毗湿摩教诲日常之法：未先礼敬诸天，不可行洁齿；未洁齿，亦不可礼敬诸天。常令心一境，白昼解手之时，当面向北方。此教旨以身之洁净、心之专注与方位之戒律，示为日用之法的一部分。
भीष्म उवाच
Educational Q&A
Bhishma links dharma to everyday discipline: maintain bodily cleanliness (tooth-cleaning), mental focus (ekāgratā), and proper ritual order with worship, treating these as ethical foundations of a regulated life.
In the Anushasana Parva’s instruction on dharma, Bhishma is advising Yudhishthira on rules of daily routine—how to conduct worship and personal hygiene, and even the proper orientation while attending to bodily functions.