Shloka 83
Atithi-prāpti and the Brāhmaṇa’s Deliberation on Triadic Dharma (अतिथिप्राप्तिः धर्मत्रयविचारश्च)
चतुष्पात् सकलो धर्मों भविष्यत्यत्र वै सुरा: । ततस्त्रेतायुगं नाम त्रयी यत्र भविष्यति
catuṣpāt sakalo dharmo bhaviṣyaty atra vai surāḥ | tatas tretāyugaṃ nāma trayī yatra bhaviṣyati |
ヴァイシャンパーヤナは言った。「おお神々よ。このサティヤ・ユガにおいては、ダルマは四つの分（四脚）すべてを備えて完全に確立される。その後、トレーターと呼ばれる時代が到来し、そこでは三重のヴェーダの伝統（ヴェーダ・トラयी）が広く行き渡る。」
वैशम्पायन उवाच
Educational Q&A
The verse presents a yuga-based ethical framework: in Satya-yuga, dharma stands complete in all four parts, while in the subsequent Tretā-yuga the religious-ethical life is characterized by the prominence of the Veda-trayī. It implies that moral and spiritual conditions vary by cosmic age, and dharma’s fullness is not constant across time.
Vaiśampāyana is describing the succession of world-ages (yugas) to the gods, stating first the condition of Satya-yuga—where dharma is fully intact—and then announcing the coming of Tretā-yuga, marked by the spread and authority of the three Vedas.