Maliks Muwatta Book 25, Hadith Number 16.
Section : Using the Skin of Animals Found Dead.
Yahya related to me from Malik from Ibn Shihab from Ubaydullah ibn Abdullah ibn Utba ibn Masud that Abdullah ibn Abbas said, “The Messenger of Allah, may Allah bless him and grant him peace, passed by a dead sheep which had been given to a mawla of his wife, Maimuna. He said, ‘ Aren’t you going to use its skin?’ They said, ‘Messenger of Allah, but it is carrion. ‘The Messenger of Allah, may Allah bless him and grant him peace, said, ‘Only eating it is haram.'”