Shloka 31
गोमूल्यनिर्णयः — The Determination of Value through the Cow
Nahuṣa–Cyavana Episode
यद्च्छयोपसम्पन्नैर्यज्ञसा धुबहिष्कृतै: । बाह्या बाह्ौौश्व जायन्ते यथावृत्ति यथाश्रयम्
yadṛcchayopasampannair yajñasādhubahiṣkṛtaiḥ | bāhyā bāhyauś ca jāyante yathāvṛtti yathāśrayam ||
毗湿摩说道：“凡不顾出身与礼法，只凭一时任性而与他瓦尔那之女相合者；又凡被剥夺祭祀之权、为善人所摒弃者——唯从此等局外之人，方生出外族与贱民之类。其混生之后裔，遂随己之嗜好与习性而行，择取种种生计，随处求依，依其境遇而动，而不循既定之法（dharma）。”
भीष्म उवाच
Educational Q&A
Bhishma links social and ritual exclusion to disregard for prescribed marital and ethical norms, stating that unions formed merely by personal whim and outside accepted dharma lead to socially marginal offspring who then live by varied, self-chosen livelihoods and supports.
In Anushasana Parva, Bhishma continues instructing Yudhishthira on dharma. Here he comments on the outcomes of improper inter-varṇa unions and the resulting communities’ social position, occupations, and dependence, framing it as a consequence of being barred from yajña and from the company of the righteous.