In the time of yore Agastya had a disciple in the science of arms. Who was known as Agnivesha. He was my preceptor and I was his disciple. O descendant of Bharata, I obtained from him by asceticism a weapon, known by the name of Brahmashira, which can never be futile and which is like thunder itself and capable of consuming the whole earth. That weapon from what I have done may now descend from disciple to disciple. Giving it to me, my preceptor said, “O son of Bharadvaja, do not hurl this weapon against any human being and against one who possess but little energy." O hero, (Arjuna), you have obtained that celestial weapon (from me); none else deserves it. But O Vishampata, obey the command of that best of Rishis (Agnivesha). Now give your preceptor's Dakshina before all your relatives and cousins.