One Of The Earliest Converts To Islam And Supporters Of Prophet Muhammad صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ Was His Cousin Az-Zubair Bin Al-'Awwam رَضِيَ ٱللَّٰهُ عَنْهُ He Accepted Islam When He Was Only Fifteen Years Old, In Spite Of The Small Number Of Muslims At That Time. He Grew Up To Be A Great Hero And Warrior For The Cause Of The Muslims. He Was Considered One Of The Senior Companions Of The Prophet صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ.