Jami` at-Tirmidhi 866
جامع الترمذي#866Da'ifيَحْيَى بْنُ يَمَانٍ، عَنْ شَرِيكٍ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَبْدِ اللَّهِ بْنِ سَعِيدِ بْنِ جُبَيْرٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ طَافَ بِالْبَيْتِ خَمْسِينَ مَرَّةً خَرَجَ مِنْ ذُنُوبِهِ كَيَوْمِ وَلَدَتْهُ أُمُّهُ " . قَالَ وَفِي الْبَابِ عَنْ أَنَسٍ وَابْنِ عُمَرَ . قَالَ أَبُو عِيسَى حَدِيثُ ابْنِ عَبَّاسٍ حَدِيثٌ غَرِيبٌ . سَأَلْتُ مُحَمَّدًا عَنْ هَذَا الْحَدِيثِ فَقَالَ إِنَّمَا يُرْوَى هَذَا عَنِ ابْنِ عَبَّاسٍ قَوْلُهُ .
Ibn Abbas narrated:"Whoever performed Tawaf around the House fifty time, he will be as free of his sins as the day his mother bore him
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 9:59