BG 1.43
दोषैरेतैः कुलघ्नानां वर्णसङ्करकारकैः
उत्साद्यन्ते जातिधर्माः कुलधर्माश्च शाश्वताः
doṣairetaiḥ kulaghnānāṃ varṇasaṅkarakārakaiḥ
utsādyante jātidharmāḥ kuladharmāśca śāśvatāḥ
TRANSLATION
By the sins of the clan-destroyers who bring about inter-mixture of classes, the ancient traditions of the clan and class are destroyed.
