"Ibn Umar was clinging on the two corners (in a manner that I had not seen any of the Companions of the Prophet doing) so I said: 'O Abu Abdur-Rahman! You are clinging on the two corners in a manner that I have not seen any of the Companions of the Prophet clining.' So he said: 'I do it because I heard the Messenger of Allah saying: "Touching them atones for sins." And I heard him saying: "Whoever performs Tawaf around this House seven times and he keeps track of it, then it is as if he freed a slave." And I heard him saying: "One foot is not put down, nor another raised except that Allah removes a sin from him and records a good merit for him."  

أَنَّ ابْنَ عُمَرَ كَانَ يُزَاحِمُ عَلَى الرُّكْنَيْنِ زِحَامًا مَا رَأَيْتُ أَحَدًا مِنْ أَصْحَابِ النَّبِيِّ ﷺ يَفْعَلُهُ فَقُلْتُ يَا أَبَا عَبْدِ الرَّحْمَنِ إِنَّكَ تُزَاحِمُ عَلَى الرُّكْنَيْنِ زِحَامًا مَا رَأَيْتُ أَحَدًا مِنْ أَصْحَابِ النَّبِيِّ ﷺ يُزَاحِمُ عَلَيْهِ فَقَالَ إِنْ أَفْعَلْ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِنَّ مَسْحَهُمَا كَفَّارَةٌ لِلْخَطَايَا وَسَمِعْتُهُ يَقُولُ مَنْ طَافَ بِهَذَا الْبَيْتِ أُسْبُوعًا فَأَحْصَاهُ كَانَ كَعِتْقِ رَقَبَةٍ وَسَمِعْتُهُ يَقُولُ لاَ يَضَعُ قَدَمًا وَلاَ يَرْفَعُ أُخْرَى إِلاَّ حَطَّ اللَّهُ عَنْهُ بِهَا خَطِيئَةً وَكَتَبَ لَهُ بِهَا حَسَنَةً