Muwatta Malik

Book 25, Hadith 17

Arabic hadith text
وَحَدَّثَنِي مَالِكٌ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنِ ابْنِ وَعْلَةَ الْمِصْرِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ إِذَا دُبِغَ الإِهَابُ فَقَدْ طَهُرَ ‏"‏ ‏.‏
Translation

Malik related to me from Zayd ibn Aslam from Ibn Wala al-Misrifrom Abdullah ibn Abbas that the Messenger of Allah, may Allah blesshim and grant him peace, said, "A skin when it is tanned is pure."