The Mahabharata of Krishna-Dwaipayana Vyasa…
“ Engaged in a dispute with the Brahmana Rishi Vasishtha, Viswamitra who was a Kshatriya king (the son of Kusika) found, by bitter experience, that Kshatriya energy and might backed by the whole science of arms, availed nothing against a Brahmana’s might, for Vasishtha by his ascetic powers created myriads and myriads of fierce troops who inflicted a signal defeat on the great Kshatriya king. Baffled thus, Viswamitra retired to the breast of Himavat and paid court to Siva. The great God appeared and Viswamitra begged him for the mastery of the whole science of weapons. ”
