Sunan an-Nasa'i #2937 · The Book of Hajj

Sunan an-Nasa'iIt was narrated Abbas bin Rabiah said
Sunan an-Nasa'i · Book 24 · The Book of Hajj
Sunan an-Nasa'i · كتاب 24 · كتاب الحج
"I saw Umar coming to the Stone and saying: 'I know that you are just a stone; had I not seen the Messenger of Allah kiss you I would not have kissed you.' Then he came close to it and kissed it." (Sahih) Chpater 148. How to Kiss It
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا عِيسَى بْنُ يُونُسَ، وَجَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنْ عَابِسِ بْنِ رَبِيعَةَ، قَالَ رَأَيْتُ عُمَرَ جَاءَ إِلَى الْحَجَرِ فَقَالَ إِنِّي لأَعْلَمُ أَنَّكَ حَجَرٌ وَلَوْلاَ أَنِّي رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُبِّلُكَ مَا قَبَّلْتُكَ ‏.‏ ثُمَّ دَنَا مِنْهُ فَقَبَّلَهُ ‏.‏
Reference : Sunan an-Nasa'i 2937In-book reference : Book 24, Hadith 320