Jami` at-Tirmidhi, Volume 2, Book 7, Hadith 877 (DarusSalam) ⓘ
Ibn Abbas narrated that: The Messenger of Allah said: "The Black Stone descended from the Paradise, and it was more white than milk, then it was blackened by the sins of the children of Adam."
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا جَرِيرٌ، عَنْ عَطَاءِ بْنِ السَّائِبِ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " نَزَلَ الْحَجَرُ الأَسْوَدُ مِنَ الْجَنَّةِ وَهُوَ أَشَدُّ بَيَاضًا مِنَ اللَّبَنِ فَسَوَّدَتْهُ خَطَايَا بَنِي آدَمَ " . قَالَ وَفِي الْبَابِ عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو وَأَبِي هُرَيْرَةَ . قَالَ أَبُو عِيسَى حَدِيثُ ابْنِ عَبَّاسٍ حَدِيثٌ حَسَنٌ صَحِيحٌ .
also referenced under: Hadith 877 (Reference) & Book 9, Hadith 70 (In-Book)