(Hasan) Abu 'Abdur-Rahman )An-Nasa'i) said: The most correct about this topic, regarding the skins of the dead animal when it is tanned, is the narration of Az-Zuhri, from 'Ubaidullah bin 'Abdullah, from Ibn 'Abbas, from Maimunah, and Allah knows best.
In-book : Book 41, Hadith 30
English translation : Vol. 5, Book 41, Hadith 4256