manusmriti

LAWS OF MANU
The Drsadvati River ("she with many stones") is a river mentioned in the Rig
Veda (RV 3.23.4) together with Sarasvati and Apaya. Vedic sacrifices are
performed on this river as a routine (Pancavimsa Brahmana; Katyayana
Sratua Sutra; Latyayana Srauta Sutra)
18. The custom handed down in regular succession (since time immemorial)
among the (four chief) castes (varna) and the mixed (races) of that country, is called
the conduct of virtuous men.
Where Should the Brahmin Stay?
19. The plain of the Kurus, the (country of the) Matsyas, Pankalas, and Surasenakas,
these (form), indeed, the country of the Brahmarshis (Brahmanical sages, which
ranks) immediately after Brahmavarta.
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