Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: A sheep belonging to Sayyidah Maymunah (may Allah be pleased with her) died, and the Prophet (peace and blessings be upon him) said: "Why did you not tan its skin? Why did you not make use of it?" They said: It is carrion. He (peace and blessings be upon him) said: "Tanning the hide is what purifies it."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20337