Imam Bukhari : 3443

حَدَّثَنَا عَلِيُّ بْنُ حَفْصٍ حَدَّثَنَا ابْنُ الْمُبَارَكِ أَخْبَرَنَا هِشَامُ بْنُ عُرْوَةَ عَنْ أَبِيهِأَنَّ أَصْحَابَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالُوا لِلزُّبَيْرِ يَوْمَ الْيَرْمُوكِ أَلَا تَشُدُّ فَنَشُدَّ مَعَكَ فَحَمَلَ عَلَيْهِمْ فَضَرَبُوهُ ضَرْبَتَيْنِ عَلَى عَاتِقِهِ بَيْنَهُمَا ضَرْبَةٌ ضُرِبَهَا يَوْمَ بَدْرٍ قَالَ عُرْوَةُ فَكُنْتُ أُدْخِلُ أَصَابِعِي فِي تِلْكَ الضَّرَبَاتِ أَلْعَبُ وَأَنَا صَغِيرٌ

"Narrated to us by 'Ali bin Hafsh, from Ibn Al-Mubarak, from Hisham bin 'Urwah, from his father: The Prophet’s companions said to Az-Zubair on the day of Yarmuk, 'Will you not attack so we can attack with you?' He charged at them, and they struck him twice on his shoulder, one of which was a wound from Badr. 'Urwah said, 'I used to put my fingers in those wounds to play with them when I was a child.'