Hadith #4125 (Sunan Abi Dawud)
Book: Clothing (Kitab Al-Libas)
Narrator(s): Abdullah bin Malik bin Hudhafa عبد الله بن مالك بن حذافة, Abdullah bin Wahb عبد الله بن وهب بن مسلم القرشي, Ahmed bin Salah al-Masri أحمد بن صالح المصري, al-Aaliya bin Sabay' العالية بنت سبيع, Amr bin al-Harith bin Ya'qub عمرو بن الحارث, Kathir bin Frqd al-Madni كثير بن فرقد المدني
Grade: Sahih

On the expedition of Tabuk the Messenger of Allah (ﷺ) came to a household and, seeing a bucket  hanging, asked for water. They said: Messenger of Allah, the animal died a natural death. He replied; Its tanning is its purification.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-4125/