Bhagavad Gita 1.40

कुलक्षये प्रणश्यन्ति कुलधर्माः सनातनाः। धर्मे नष्टे कुलं कृत्स्नमधर्मोऽभिभवत्युत

kula-kṣhaye praṇaśhyanti kula-dharmāḥ sanātanāḥ dharme naṣhṭe kulaṁ kṛitsnam adharmo ’bhibhavaty uta

In the destruction of a family the immemorial family traditions perish; in the perishing of tradition, lawlessness overcomes the whole family;