Mahabharata 5.145.18

न चोच्छेदं कुलं यायाद्विस्तीर्येत कथं यशःतस्याहमीप्सितं बुद्ध्वा कालीं मातरमावहम्

na cocchedaṃ kulaṃ yāyādvistīryeta kathaṃ yaśaḥtasyāhamīpsitaṃ buddhvā kālīṃ mātaramāvaham

Our plain-language meaning of this verse is waiting for scholar review.