Full Sharh — Mishkat al-Masabih 3323
وَعَنْهُ قَالَ: كَسَرَتِ الرُّبَيِّعُ وَهِيَ عَمَّةُ أَنَسِ بْنِ مَالِكٍ ثَنِيَّةَ جَارِيَةٍ مِنَ الْأَنْصَارِ فَأَتَوُا النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَأَمَرَ بِالْقِصَاصِ فَقَالَ أَنَسُ بْنُ النَّضْرِ عَمُّ أَنَسِ بْنِ مَالِكٍ لَا وَاللَّهِ لَا تُكْسَرُ ثَنِيَّتُهَا يَا رَسُولَ اللَّهِ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «يَا أَنَسُ كِتَابُ اللَّهِ الْقِصَاصُ» فَرَضِيَ الْقَوْمُ وَقَبِلُوا الْأَرْشَ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِنَّ مِنْ عِبَادِ اللَّهِ مَنْ لَوْ أَقْسَمَ عَلَى الله لَأَبَره»
English Translation
He said that ar-Rubaiyi‘, paternal aunt of Anas b. Malik, broke the front tooth of a girl of the Ansar, and when they went to the Prophet he ordered retaliation to be taken. Then Anas b. an-Nadr, paternal uncle of Anas b. Malik, said, “No, by God, her front tooth will not be broken, Messenger of God." He replied, “Anas, God’s decree is retaliation." But the people were agreeable to accepting a fine, so God’s Messenger said, “Among God’s servants there are those who, if one adjured God, would consent to it." (Bukhari and Muslim.)
Source
Mishkat al-Masabih(مشكاة المصابيح)
Retaliation
Hadith Number
3323