I know that you are only a stone and you cannot cause harm or bring benefit. Were it not that I saw the Messenger of Allah( ﷺ )kiss you, I would not have kissed you. Then he kissed it.

إِنِّي لَأَعْلَمُ أَنَّكَ حَجَرٌ لَا تَضُرُّ وَلا تَنْفَعُ وَلَوْلا أَنِّي رَأَيْتُ رَسُولَ اللهِ ﷺ يُقَبِّلُكَ مَا قَبَّلْتُكَ قَالَ ثُمَّ قَبَّلَهُ