Ibn Abbas reported: He was circling the House with Mu’awiya and Mu’awiya would touch all of its corners. Ibn Abbas said, “Why did you touch these two corners? The Messenger of Allah, peace and blessings be upon him, did not touch these two.” Mu’awiya said, “Nothing from the House should be abandoned.” Ibn Abbas said, “Certainly you have in the Messenger of Allah an excellent example.” (33:21) Mu’awiya said, “You are right.”
Source: Musnad Ahmad 1880
Grade: Sahih (authentic) according to Ahmad Shakir
عَنِ ابْنِ عَبَّاسٍ أَنَّهُ طَافَ مَعَ مُعَاوِيَةَ بِالْبَيْتِ فَجَعَلَ مُعَاوِيَةُ يَسْتَلِمُ الْأَرْكَانَ كُلَّهَا فَقَالَ لَهُ ابْنُ عَبَّاسٍ لِمَ تَسْتَلِمُ هَذَيْنِ الرُّكْنَيْنِ وَلَمْ يَكُنْ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَسْتَلِمُهُمَا فَقَالَ مُعَاوِيَةُ لَيْسَ شَيْءٌ مِنْ الْبَيْتِ مَهْجُورًا فَقَالَ ابْنُ عَبَّاسٍ لَقَدْ كَانَ لَكُمْ فِي رَسُولِ اللَّهِ أُسْوَةٌ حَسَنَةٌ فَقَالَ مُعَاوِيَةُ صَدَقْتَ
1880 مسند أحمد ومن مسند بني هاشم مسند عبد الله بن العباس بن عبد المطلب عن النبي صلى الله عليه وسلم بداية مسند عبد الله بن العباس