Chapter 1 · verse 41 · gita.yoga.org

Bhagavad Gita 1.41

अधर्माभिभवात्कृष्ण प्रदुष्यन्ति कुलस्त्रियः। स्त्रीषु दुष्टासु वार्ष्णेय जायते वर्णसङ्करः

O Krishna, by the prevalence of impiety, the women of the family become corrupt; and, when women are corrupted, O Varshenya (descendant of Vrishni), intermingling of castes arises.