परिव्राजक-आचारः (Conduct of the Wandering Renunciant) — Mahābhārata, Śānti-parva 269
तस्मिन् विधौ स्थितानां हि प्रायश्षित्तं न विद्यते । दुर्बलात्मन उत्पन्न प्रायश्षित्तमिति श्रुति:
tasmin vidhau sthitānāṃ hi prāyaścittaṃ na vidyate | durbalātman utpannaṃ prāyaścittam iti śrutiḥ ||
कपिल बोले—उस विधि में जो स्थिर रहते हैं, उनके लिए प्रायश्चित्त होता ही नहीं। प्रायश्चित्त का विधान तो दुर्बल-हृदय वालों के लिए कहा गया है; क्योंकि पाप उन्हीं से उत्पन्न होता है—ऐसा शास्त्रों में सुना जाता है।
कपिल उवाच
Kapila teaches that expiation (prāyaścitta) is a remedial rule meant for those who lapse due to inner weakness; one who is firmly established in the right discipline and purity does not generate the kind of fault that requires atonement.
In the Śānti Parva’s instruction on dharma and liberation-oriented discipline, Kapila is explaining the logic of moral failure and penance: wrongdoing is linked to weakness of mind, and therefore the tradition prescribes prāyaścitta as a corrective for such persons, not as a necessity for the steadfast.