Sunan an-Nasa'i, Hadith 4047 ⓘ
It was narrated from Anas who said: "The Messenger of Allah [SAW] used to stress charity in his sermons, and prohibit 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 .
also referenced under: Book 37, Hadith 82 (In-Book) & Volume 5, Book 37, Hadith 4052 (DarusSalam)