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।


Kumara Vaishnava Sampradaya - Commentary
Arjuna is supporting his argument  by  affirming  that  he  has  heard  from
respectable sources in disciplic succession, that those who are  responsible
for  destroying  righteousness  reside  permanently  in  hellish  existence.
Therefore this decision to fight is not the wisest of choices.