Mbh 5.190.1b

O lord, having the bull for thy mount, act in such a way that promise of thine may become true, that encountering Bhishma, the son of Santanu, in battle I may be able to slay him.’ The god of gods, having the bull for his symbol, then said unto that maiden, ‘The words I have uttered cannot be false. O blessed lady, true they will be. Thou shalt slay Bhishma, and even obtain manhood. Thou shalt also remember all the incidents (of this life) even when thou shalt obtain a new body. Born in the race of Drupada, thou shalt become a Maharatha. Quick in the use of weapons and a fierce warrior, thou shalt be well-skilled in battle. O blessed lady, all that I have said will be true. Thou shalt become a man at the expiration of sometime (from thy birth)!’ Having said so, the god of gods, called also Kapardin, having the bull for his symbol, disappeared then and there, in the very sight of those Brahmanas. Upon this, that faultless maiden of the fairest complexion, the eldest daughter of the king of Kasi, procuring wood from that forest in the very sight of those great Rishis, made a large funeral pyre on the banks of the Yamuna, and having set fire to it herself, entered that blazing fire, O great king, with a heart burning with wrath, and uttering, O king, the words,--‘(I do so) for Bhishma’s destruction!’”’”