Sahih al-Bukhari 1609
Book 25: Hajj (Pilgrimage) · Narrated by Salim bin `Abdullah that his father said
Arabic
حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا لَيْثٌ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِيهِ ـ رضى الله عنهما ـ قَالَ لَمْ أَرَ النَّبِيَّ صلى الله عليه وسلم يَسْتَلِمُ مِنَ الْبَيْتِ إِلاَّ الرُّكْنَيْنِ الْيَمَانِيَيْنِ.
English translation
Narrated Salim bin `Abdullah that his father said:"I have not seen the Prophet (ﷺ) touching except the two Yemenite Corners (i.e. the ones facing Yemen)
Reference: Sahih al-Bukhari 1609, Book of Hajj (Pilgrimage). English translation by Dr. Muhammad Muhsin Khan.