‘More important is the Sarasvatī, the true lifeline of Vedic geography, whose trace is assumed to be found in the Sarsutī, located between the Satlaj and the Jamnā. With the Indus and its five tributaries, it forms the Veda’s “seven rivers”.’
Source, in full
Renou, Louis & Jean Filliozat, L’Inde classique: manuel des études indiennes, vol. 1, Payot, 1947; republ. Librairie d’Amérique et d’Orient, 1985, p. 372. in Danino, M. (2010). The lost river : on the trail of the Sarasvatī. Penguin Books India.