It was narrated from Anas that:

the Messenger of Allah ruled that Qisas should be given for a tooth. The Messenger of Allah said: "The Messenger of Allah said: "What Allah has decreed is retaliation."

أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا أَبُو خَالِدٍ، سُلَيْمَانُ بْنُ حَيَّانَ قَالَ حَدَّثَنَا حُمَيْدٌ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ ﷺ قَضَى بِالْقِصَاصِ فِي السِّنِّ وَقَالَ رَسُولُ اللَّهِ ﷺ " كِتَابُ اللَّهِ الْقِصَاصُ " .