Mahabharata 12.105.29
यथा लब्धोपपन्नार्थस्तथा कौसल्य रंस्यसेकच्चिच्छुद्धस्वभावेन श्रिया हीनो न शोचसि
yathā labdhopapannārthastathā kausalya raṃsyasekaccicchuddhasvabhāvena śriyā hīno na śocasi
Our plain-language meaning of this verse is waiting for scholar review.