Muwatta Malik 816
موطأ مالك#816Sahihحَدَّثَنِي 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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 20:112