Bhagavad Gita: Chapter 1, Verse 43
दोषैरेतै: कुलघ्नानां वर्णसङ्करकारकै: |
उत्साद्यन्ते जातिधर्मा: कुलधर्माश्च शाश्वता: || 43||
doṣhair etaiḥ kula-ghnānāṁ varṇa-saṅkara-kārakaiḥ
utsādyante jāti-dharmāḥ kula-dharmāśh cha śhāśhvatāḥ
Through the evil deeds of those who destroy the family tradition and thus give rise to unwanted progeny, a variety of social and family welfare activities are ruined.