Daśa-Karmapatha: Restraints of Body, Speech, and Mind (दश कर्मपथ)
तस्माद् वाक्कायमनसा नाचरेदशुभं नर: । शुभाशुभान्याचरन् हि तस्य तस्याश्षुते फलम्
tasmād vākkāyamanasā nācared aśubhaṃ naraḥ | śubhāśubhāny ācaran hi tasya tasyāśnute phalam ||
Therefore a person should never commit an inauspicious deed by mind, speech, or body. For whatever—good or evil—one practices, one surely comes to experience the corresponding result.
भीष्म उवाच
One should restrain mind, speech, and body from harmful acts, because every action—good or bad—inevitably yields a corresponding result for the doer.
Bhīṣma is instructing on dharma and right conduct, emphasizing moral causality (karma-phala): ethical discipline in thought, word, and deed leads to good outcomes, while wrongdoing brings suffering.