I saw ʿUmar kiss the Black Stone and say: I know that you are a stone and cannot cause harm or bring benefit, but I saw Abul-Qasim ﷺ show respect to you.
عَنْ سُوَيْدِ بْنِ غَفَلَةَ قَالَرَأَيْتُ عُمَرَ يُقَبِّلُ الْحَجَرَ وَيَقُولُ إِنِّي لَأَعْلَمُ أَنَّكَ حَجَرٌ لَا تَضُرُّ وَلا تَنْفَعُ وَلَكِنِّي رَأَيْتُ أَبَا الْقَاسِمِ ﷺ بِكَ حَفِيًّا