Mahabharata 1.97.22
यथा ते कुलतन्तुश्च धर्मश्च न पराभवेत्सुहृदश्च प्रहृष्येरंस्तथा कुरु परंतप
yathā te kulatantuśca dharmaśca na parābhavetsuhṛdaśca prahṛṣyeraṃstathā kuru paraṃtapa
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book