Jabir b. Abdullah reported: I heard Allah's Messenger ﷺ exhorting people on the Day of the Battle of the Ditch to fight. Zubair said: I am ready (to participate). He then again exhorted and he again said: I am ready to participate. Thereupon Allah's Messenger ﷺ said: Behold. for every Prophet there is a helper and my helper is Zubair.
The Prophet's recognition of Zubair's courage serves as an example for all Muslims today; we should strive towards being brave enough so that our actions can be recognized by Allah SWT just like Zubair's were recognized by His Messenger PBUH. Additionally, this hadith emphasizes how important it is for us as Muslims not only have faith but also act upon our faith when needed - whether through dawah or defending our religion from those who wish harm upon it - so that we can truly live up to its teachings and values.