After some time, Rasulullah (sallallahu ‘alaihi wasallam) again asked, “Who will bring me information of these people (the Banu Quraizah)?” Once again, Hazrat Zubair (radhiyallahu ‘anhu) volunteered to go. Finally, Rasulullah (sallallahu ‘alaihi wasallam) asked for a third time, “Who will bring me information of these people (the Banu Quraizah)?” On this occasion as well, Hazrat Zubair (radhiyallahu ‘anhu) volunteered to go. It was on this occasion that Rasulullah (sallallahu ‘alaihi wasallam) was overjoyed and pleased with Hazrat Zubair (radhiyallahu ‘anhu) and mentioned, “Indeed every Nabi had a special helper, and my special helper is Hazrat Zubair bin ‘Awwaam (radhiyallahu ‘anhu).”
(Siyar A’laam min Nubalaa 3/30, Saheeh Bukhaari #3719, Saheeh Muslim #2415, Sunan Tirmizi #3745, Fat-hul Baari 6/63, 7/100)