Mahabharata — Anushasana Parva, Shloka 8
Dvaipāyana–Kīṭa Saṃvāda: Karmic Memory, Fear of Death, and Embodied Pleasure
पूर्व तु मनसा त्यक्त्वा तथा वाचाथ कर्मणा । न भक्षयति यो मांसं त्रिविधं स विमुच्यते
pūrvaṁ tu manasā tyaktvā tathā vācātha karmaṇā | na bhakṣayati yo māṁsaṁ trividhaṁ sa vimucyate ||
毗湿摩说道：“若有人先于心中弃暴，再于言语弃暴，继而于行为弃暴——因此不食肉——便能脱离三重暴害之垢。此教诲强调：伦理的清净有其层次，唯有当意念、言辞与行事皆同受约束、不加伤害时，方为圆满。”
भीष्म उवाच
Educational Q&A
True non-violence must be practiced on three levels—mind, speech, and action. When a person progressively abandons harm in thought, word, and deed, and refrains from eating meat, they become free from the दोष (taint) associated with these three forms of हिंसा.
In the Anuśāsana Parva’s instruction section, Bhīṣma is teaching principles of dharma. Here he explains an ethical discipline: renouncing violence internally and externally, expressed concretely through abstention from meat, leading to release from the impurity of threefold हिंसा.