سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 4047
The Book of Fighting [The Prohibition of Bloodshed]
The Prohibition of Mutilation
أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، قَالَ حَدَّثَنَا عَبْدُ الصَّمَدِ، قَالَ حَدَّثَنَا هِشَامٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَحُثُّ فِي خُطْبَتِهِ عَلَى الصَّدَقَةِ وَيَنْهَى عَنِ الْمُثْلَةِ .
It was narrated from Anas who said: "The Messenger of Allah [ﷺ] used to stress charity in his sermons, and prohibit mutilation."
Sunan an-Nasa'i, 4047Sahih (Darussalam)