Jñāneśvarī (commentary on the Bhagavadgītā) 1.257

1.257

doṣair etaiḥ kulaghnānāṃ varṇasaṃkarakārakaiḥ
utsādyante jātidharmāḥ kuladharmāś ca śāśvatāḥ
utsannakuladharmāṇāṃ manuṣyāṇāṃ janārdana
narake niyataṃ vāso bhavatīty anuśuśruma
devā avadhārīṃ āṇīka eka |
etha ghaḍe mahāpātaka |
je saṃgadoṣeṃ hā laukika |
bhraṃśu pāve ||

O Lord, listen to another thing: / a great sin happens here, / because through the taint of association, the common society / falls into corruption.