The Hymns of the Rigveda · Book 10
RV 10.181
10.181.1VASISTHA mastered the Rathantara, took it from radiant Dhatar, Savitar, and Visnu, Oblation, portion of fourfold oblation, known by the names of Saprathas and Prathas.
10.181.2These sages found what lay remote and hidden, the sacrifice's loftiest secret essence. From radiant Dhatar, Savitar, and Visnu, from Agni, Bharadvaja brought the Brhat.
10.181.3They found with mental eyes the earliest Yajus, a pathway to the Gods, that had descended. From radiant Dhitar, Savitar, and Visnu, from Surya did these sages bring the Gharma.