Hadith #4251 (Sunan al-Nasa'i)
Book: The Book of al-Fara' and al-'Atirah
Narrator(s): Abdullah bin 'Akaym عبد الله بن عكيم, Ali bin Hujr bin Iyas bin Maqatil علي بن حجر بن إياس بن مقاتل, Hilal bin 'Abdur Rahman al-Wzan هلال بن عبد الرحمن, Sharayk bin 'Abdullah شريك بن عبد الله النخعي

“The Messenger of Allah said: ‘Any skin that is tanned has been purified.”‘

Source: https://parallelquran.com/hadith/sunan-al-nasai-4251/