Abdullah bin lahya'a bin 'Uqba عبد الله بن لهيعة بن عقبة الحضرمي · Chapters on Slaughtering

“The Messenger of Allah (ﷺ) forbade mutilating animals.”

“We went out with the Messenger of Allah (ﷺ) on the campaign of Khaibar, and in the evening the people lit their fires. The Prophet (ﷺ) said: ‘What are you cooking?’ They said: ‘The meat of domesticated donkeys.’ He said: ‘Throw out what is in them (the pots) and break them.’ A man said: ‘Or can we throw out what is in them and wash them?’ The Prophet (ﷺ) said: ‘Or (do) that.’”

“Allah and His Messenger forbid you to eat the flesh of domesticated donkeys, for it is filthy.”