Mahabharata 1.69.17

कुलवंशप्रतिष्ठां हि पितरः पुत्रमब्रुवन्उत्तमं सर्वधर्माणां तस्मात्पुत्रं न संत्यजेत्

kulavaṃśapratiṣṭhāṃ hi pitaraḥ putramabruvanuttamaṃ sarvadharmāṇāṃ tasmātputraṃ na saṃtyajet

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