وَعَنْ عَابِسِ بْنِ رَبِيعَةَ قَالَ: رَأَيْت عمر يقبل الْحجر وَيَقُول: وَإِنِّي لَأَعْلَمُ أَنَّكَ حَجَرٌ مَا تَنْفَعُ وَلَا تَضُرُّ وَلَوْلَا أَنِّي رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يقبل مَا قبلتك
‘Abis b Rabi'a said he saw ‘Umar kissing the stone and saying, “I know for sure that you are a stone which can neither benefit nor injure, and had I not seen God’s messenger kissing you I would not have kissed you.” (Bukharl and Muslim.)
Reported by Al-Bukhari (No. 1597, 1605, 1610), Muslim (No. 1270a, 1270b, 1270c, 1270d, 1271a, 1271b), At-Tirmidhi (No. 860), An-Nasa’i (No. 2936), Malik (No. 819), Ahmad (No. 95, 171, 220, 223, 263, 307, 357, 358) and Ad-Darimi (No. 1790). Cited in Mishkat al-Masabih (No. 2589).