مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 498
Purification
The Cleansing of Impurities - Section 1
وَعَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم يَقُول: «إِذَا دُبِغَ الْإِهَابُ فَقَدْ طَهُرَ» . رَوَاهُ مُسْلِمٌ
‘Abdallah b. ‘Abbas said that he heard God’s messenger say, “When a skin is tanned it is pure." Muslim transmitted it.
Mishkat al-Masabih, 498صَحِيح (الألباني)