وَحَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ رَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، أَنَّ عَبْدَ اللَّهِ بْنَ الزُّبَيْرِ، أَقَادَ مِنَ الْمُنَقَّلَةِ ‏.‏

Yahya related to me from Malik from Rabia ibn Abi Abd ar-Rahman thatAbdullah ibn az-Zubayr allowed retaliation for a head wound whichsplintered the bone. Translation Not Available

Book Ref: Muwatta Imam Malik Book 43 Hadith 1573
Web Ref:  Muwatta Imam Malik Book 43 Hadith 6