"I said to Ibn Umar: 'I see that you only touch these two Yemeni corners.' He said: 'I only saw the Messenger of Allah touch these two corners.'" This is an abridgement of it.
قُلْتُ لاِبْنِ عُمَرَ رَأَيْتُكَ لاَ تَسْتَلِمُ مِنَ الأَرْكَانِ إِلاَّ هَذَيْنِ الرُّكْنَيْنِ الْيَمَانِيَيْنِ قَالَ لَمْ أَرَ رَسُولَ اللَّهِ ﷺ يَسْتَلِمُ إِلاَّ هَذَيْنِ الرُّكْنَيْنِ مُخْتَصَرٌ