Bhagavad Gita 1.43

दोषैरेतै: कुलघ्नानां वर्णसङ्करकारकै: |
उत्साद्यन्ते जातिधर्मा: कुलधर्माश्च शाश्वता:

Translation

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.