Mahabharata 3.2.29
कोटराग्निर्यथाशेषं समूलं पादपं दहेत्धर्मार्थिनं तथाल्पोऽपि रागदोषो विनाशयेत्
koṭarāgniryathāśeṣaṃ samūlaṃ pādapaṃ dahetdharmārthinaṃ tathālpo'pi rāgadoṣo vināśayet
Our plain-language meaning of this verse is waiting for scholar review.