Bhishma was about to use the divine deadly weapon Praswapa when suddenly voices arose in the sky. Thereafter Narada addressed him and asked him not to use the weapon as Parashurama is an ascetic possessed of Brahma merit, and his preceptor too, never humiliate him. Bhishma hence withdrew the weapon and Parashurama admitted that he's vanquished.Originally posted by: TheWatcher
Adding one more question :
Did Bhishma really did defeat Parshurama? ,Because somebody in this forum told that in the "Vyas's" Mahabharata They both had to lay their arms off and stop the fight there wasn't any result ,which one is true?
The weapon had the ability to put the foe on sleep, and a warrior's sleep is considered equal to his death in the battle field.
This weapon is known to the Vasus and lord Shiva. Arjuna had it too, temporarily I guess!