Sunan an-Nasa'i, Volume 5, Book 45, Hadith 4742 (DarusSalam) ⓘ
It was narrated that Samurah said: "The Prophet said: 'Whoever kills his slave, we will kill him, and whoever mutilates his slave, we will mutilate him."'
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ سَمُرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ قَتَلَ عَبْدَهُ قَتَلْنَاهُ وَمَنْ جَدَعَ عَبْدَهُ جَدَعْنَاهُ " .
also referenced under: Hadith 4738 (Reference) & Book 45, Hadith 33 (In-Book)