The Book of al-Fara' and al-'Atirah
41/4. Chapter:
The Skin Of Dead Animals (Those Not Slaughtered Or Killed Properly)
Sunan an-Nasai
أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعْدِ بْنِ إِبْرَاهِيمَ بْنِ سَعْدٍ، قَالَ حَدَّثَنَا عَمِّي، قَالَ حَدَّثَنَا شَرِيكٌ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، قَالَتْ سُئِلَ رَسُولُ اللَّهِ صلى الله عليه وسلم عَنْ جُلُودِ الْمَيْتَةِ فَقَالَ " دِبَاغُهَا ذَكَاتُهَا " .
It was narrated that 'Aishah said: "The Messenger of Allah was asked about the hides of dead animals." He said: "Tanning it purifies it."
Reference : Sunan an-Nasa'i 4245In-book reference : Book 41, Hadith 24English translation : Vol. 5, Book 41, Hadith 4250