Muwatta Malik #853
Hajj
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ عُمَرَ بْنَ الْخَطَّابِ، قَالَ وَهُوَ يَطُوفُ بِالْبَيْتِ لِلرُّكْنِ الأَسْوَدِ إِنَّمَا أَنْتَ حَجَرٌ وَلَوْلاَ أَنِّي رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم قَبَّلَكَ مَا قَبَّلْتُكَ ثُمَّ قَبَّلَهُ .
Yahya related to me from Malik from Hisham ibn Urwa from his
father that Umar ibn al-Khattab said to the corner of the Black Stone
while he was doing tawaf of the House, "You are only a stone, and if I
had not seen the Messenger of Allah, may Allah bless him and grant him
peace, kiss you, I would not do so." Then he kissed it.
Malik said, "I have heard some of the people of knowledge recommending
someone doing tawaf of the House to put his hand to his mouth when he
takes it from the Yamani corner."
About Muwatta Malik
This hadith is #853 from Muwatta Malik, in the Book of Hajj.