Udyoga Parva Adhyāya 132 — Vidura’s Counsel on Udyama, Yaśas, and Kṣātra-Dharma
अवल्गुकारिणं सत्सु कुलवंशस्थ नाशनम्
avalgukāriṇaṃ satsu kulavaṃśastha nāśanam
सज्जनांमध्ये जो नीच व तिरस्करणीय वर्तन करतो, तो कुल-वंशाची मर्यादा नष्ट करणारा ठरतो.
वायुदेव उवाच
Base conduct, especially in the presence of the virtuous, is not a private failing—it becomes socially destructive, capable of ruining a clan’s moral standing and continuity of dharma.
Vāyu-deva is speaking a moral judgment: he characterizes a contemptible person as one who brings about the destruction of the family line, emphasizing the communal consequences of unethical behavior.