Sunan an-Nasa'i, Volume 5, Book 45, Hadith 4757 (DarusSalam) ⓘ
It was narrated from Samurah that the Messenger of Allah said: "Whoever kills his slave, we will kill him, and whoever mutilates his slave, we will mutilate him."
أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ سَمُرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنْ قَتَلَ عَبْدَهُ قَتَلْنَاهُ وَمَنْ جَدَعَ عَبْدَهُ جَدَعْنَاهُ " .
also referenced under: Hadith 4753 (Reference) & Book 45, Hadith 48 (In-Book)