Killing By Mutilation Is Unislamic, By Imaam Ash-Shaafi’ee

Ash-Shaafi’ee said:

“When the Muslims captured some polytheists and wanted to kill them, they killed them by beheading, but they did not go beyond that. They did not mutilate them by cutting off hands or feet or any part of the body, or stabbing them in the stomach or burning or drowning or anything beyond what was described, because the Messenger of Allah (saw) forbade mutilation.”

[Al-Umm, by Ash-Shaafi’ee, 4/162]