Bhagavad Gita Chapter 1 Verse 43
भगवद् गीता अध्याय 1 श्लोक 43

दोषैरेतैः कुलघ्नानां वर्णसङ्करकारकैः।
उत्साद्यन्ते जातिधर्माः कुलधर्माश्च शाश्वताः।।1.43।।



हिंदी अनुवाद - स्वामी तेजोमयानंद
।।1.43।।इन वर्णसंकर कारक दोषों से कुलघाती दोषों से सनातन कुलधर्म और जातिधर्म नष्ट हो जाते हैं।


Brahma Vaishnava Sampradaya - Commentary

Madhvacarya has no commentary so we present Baladeva Vidyabhusanas.

Here by the word kula-dharma getting spoiled also  means  that  jati-dharmah
meaning  the  duties  of  each  caste  and   asrama   dharma   meaning   the
relationships between the castes are indicated as well. Anususruma means  we
have heard in the line of parampara disciplic succession  that  persons  who
are addicted to sinful activities; yet who do not make atonement  or  repent
are damned to excruciatingly painful and terrifying hells.