From Sahih Bukhari (Hadith 1492):
Narrated Ibn `Abbas:The Prophet (ﷺ) saw a dead sheep which had been given in charity to a freed slave-girl of Maimuna, the wife of the Prophet (ﷺ) . The Prophet (ﷺ) said, "Why don't you get the benefit of its hide?" They said, "It is dead." He replied, "Only to eat (its meat) is illegal
Reference: Bukhari 1492