Sahih al-Bukhari, Hadith 2997 ⓘ
Narrated Jabir bin `Abdullah: On the day of the battle of the Trench, the Prophet wanted somebody from amongst the people to volunteer to be a reconnoitre. Az-Zubair volunteered. He demanded the same again and Az-Zubair volunteered again. Then he repeated the same demand (thrice) and AzZubair volunteered once more. The Prophet then said, " Every prophet has a disciple and my disciple is Az-Zubair."
حَدَّثَنَا الْحُمَيْدِيُّ، حَدَّثَنَا سُفْيَانُ، حَدَّثَنَا مُحَمَّدُ بْنُ الْمُنْكَدِرِ، قَالَ سَمِعْتُ جَابِرَ بْنَ عَبْدِ اللَّهِ ـ رضى الله عنهما ـ يَقُولُ نَدَبَ النَّبِيُّ صلى الله عليه وسلم النَّاسَ يَوْمَ الْخَنْدَقِ، فَانْتَدَبَ الزُّبَيْرُ، ثُمَّ نَدَبَهُمْ فَانْتَدَبَ الزُّبَيْرُ، ثُمَّ نَدَبَهُمْ فَانْتَدَبَ الزُّبَيْرُ، قَالَ النَّبِيُّ صلى الله عليه وسلم " إِنَّ لِكُلِّ نَبِيٍّ حَوَارِيًّا، وَحَوَارِيَّ الزُّبَيْرُ " . قَالَ سُفْيَانُ الْحَوَارِيُّ النَّاصِرُ.
also referenced under: Book 56, Hadith 206 (In-Book) & Volume 4, Book 52, Hadith 240 (USC-MSA)