I asked 'Abdullah b. 'Abbas saying: We are the inhabitants of the western regions. The Magians come to us with skins full of water and fat. He said: Drink. I said to him: Is it your own opinion? Ibn Abbas said: I heard the Messenger of Allah ﷺ say: Tanning purifies it (the skin).  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ دِبَاغُهُ طَهُورُهُ  

"The Prophet was asked about the hides of dead animals." He said: "Tanning it purifies it."  

سُئِلَ النَّبِيُّ ﷺ عَنْ جُلُودِ الْمَيْتَةِ فَقَالَ دِبَاغُهَا طَهُورُهَا  

[Machine] I heard the Messenger of Allah ﷺ saying, "Its tanner is its purifier."  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ دِبَاغُهَا طُهُورُهَا  

[Machine] According to the Messenger of Allah, ﷺ , the tanning of an animal cleanses it or its charity.  

عَنْ رَسُولِ اللهِ ﷺ دِبَاغُهَا طُهُورُهَا أَوْ ذَكَاتُهَا  

[Machine] The messenger of Allah ﷺ said, "He is like him."  

قَالَ رَسُولُ اللهِ ﷺ مِثْلَهُ  

This tradition has also been transmitted by Sa'd (b. Abi Waqqas) from the Prophet ﷺ in a similar manner through a different chain of narrators. (Using translation from Abū Dāʾūd 1470)   

قَالَ رَسُولُ اللهِ ﷺ  

[Machine] The Messenger of Allah ﷺ said, "The tanning of the skin of a dead animal makes it pure."  

قَالَ رَسُولُ اللَّهِ ﷺ «دِبَاغُ جُلُودِ الْمَيْتَةِ طَهُورُهَا»  

[Machine] The Messenger of Allah ﷺ said, "."  

قَالَ رَسُولُ اللهِ ﷺ