Mishkat al-Masabih 16 Retaliation كتاب القصاص 30

وَعَنْ أَبِي الدَّرْدَاءِ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: «مَا مِنْ رَجُلٍ يُصَابُ بِشَيْءٍ فِي جَسَدِهِ فَتَصَدَّقَ بِهِ إِلَّا رَفَعَهُ اللَّهُ بِهِ دَرَجَةً وَحَطَّ عَنْهُ خَطِيئَة» . رَوَاهُ التِّرْمِذِيّ وَابْن مَاجَه

Abud Darda’ told that he heard God’s Messenger say, “No one will suffer any bodily injury and forgive it* without God raising him a degree for it and removing a sin from him.” Tirmidhi and Ibn Majah transmitted it. * Literally “give it as sadaqa .”