Atithi-prāpti and the Brāhmaṇa’s Deliberation on Triadic Dharma (अतिथिप्राप्तिः धर्मत्रयविचारश्च)
शौचाचारसमायुक्तान् जितक्रोधान् जितेन्द्रियान् । वेदानध्यापयामास महाभारतपञ्चमान्
śaucācārasamāyuktān jitakrodhān jitendriyān | vedān adhyāpayāmāsa mahābhāratapañcamān ||
Vaiśampāyana said: He instructed them in the Vedas—treating the Mahābhārata as the fifth—after finding them endowed with purity and right conduct, having conquered anger, and having mastered their senses.
वैशम्पायन उवाच
True learning is grounded in character: purity (śauca), right conduct (ācāra), mastery over anger, and control of the senses qualify a student to receive sacred instruction. Knowledge is presented as inseparable from ethical discipline.
Vaiśampāyana reports that a teacher instructed worthy, self-controlled students in the Vedas, and also taught the Mahābhārata as an additional authoritative body of dharma-teaching—figuratively ‘the fifth’ alongside the Vedas.