Umar came near the Black Stone and kissed it and said, "No doubt, I know that you are a stone and can neither benefit anyone nor harm anyone. Had I not seen Messenger of Allah ﷺ kissing you I would not have kissed you."

أَنَّهُ جَاءَ إِلَى الْحَجَرِ الأَسْوَدِ، فَقَبَّلَهُ فَقَالَ: «إِنِّي أَعْلَمُ أَنَّكَ حَجَرٌ لاَ تَضُرُّ وَلاَ تَنْفَعُ وَلَوْلاَ أَنِّي رَأَيْتُ النَّبِيَّ ﷺ يُقَبِّلُكَ مَا قَبَّلْتُكَ».