Tradition

Evam jnatva kritam karma purvair api mumukshubhih, kuru karmaiva tasmat tvam purvaih purvataram kritam

Knowing this, the ancient seekers of liberation also performed action. Therefore, perform your duty as the ancients did in earlier times.

Rishibhir bahudha gitam cchandobhir vividhaih prithak, brahma-sutra-padaish chaiva hetumadbhir vinishchitaih

This knowledge of the field and its knower has been sung by the sages in various ways, in different Vedic hymns, and in the Brahma-sutra with all its reasonings and conclusions. The wisdom is thus well-established across sacred traditions.

Om tat sad iti nirdeso brahmanas tri-vidhah smritah, brahmanas tena vedas cha yajnas cha vihitah pura

Om Tat Sat—these three designations are used to indicate the Supreme Absolute Truth. By these, the Vedas, priests, and sacrifices were established in ancient times.