What scars did Az-Zubair receive on the day of Badr and the day of Al-Yarmuk, and how did 'Abdul-Malik bin Marwan identify them? (Peace be upon Prophet Muhammad (saw))
      Narrated 'Urwa (the son of Az- Zubair):                          Az-Zubair had three scars      caused by the sword, one of which was over his shoulder and I used to      insert my fingers in it. He received two of those wounds on the day of     Badr and one on the day of Al-Yarmuk. When 'Abdullah bin Zubair was      killed, 'Abdul-Malik bin Marwan said to me, "O 'Urwa, do you recognize     the sword of Az-Zubair?" I said, "Yes." He said, "What marks does it      have?" I replied, "It has a dent in its sharp edge which was caused in     it on the day of Badr." 'Abdul- Malik said, "You are right! (i.e.      their swords) have dents because of clashing with the regiments of the     enemies Then 'Abdul-Malik returned that sword to me (i.e. Urwa).      (Hisham, 'Urwa's son said, "We estimated the price of the sword as      three-thousand (Dinars) and after that it was taken by one of us (i.e.     the inheritors) and I wish I could have had it.")