Mahabharata 12.283.23
तस्मादहं ब्रवीमि त्वां राजन्संचिन्त्य शास्त्रतःसंसिद्धाधिगमं कुर्यात्कर्म हिंसात्मकं त्यजेत्
tasmādahaṃ bravīmi tvāṃ rājansaṃcintya śāstrataḥsaṃsiddhādhigamaṃ kuryātkarma hiṃsātmakaṃ tyajet
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book