Full Sharh — Muwatta Malik 816
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 .
English Translation
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
Source
Muwatta Malik(موطأ مالك)
Hajj
Hadith Number
816
Grade
Mauquf Sahih Lighairihi