Sahih Muslim , Book 7, Hadith 2908 (USC-MSA) ⓘ
Nafi' reported on the authority of 'Abdullah (Allah be pleased with him) that Allah's Messenger (way peace be upon him) did not touch but the Stone and the Yamani corner.
وَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا خَالِدُ بْنُ الْحَارِثِ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ، ذَكَرَ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ لاَ يَسْتَلِمُ إِلاَّ الْحَجَرَ وَالرُّكْنَ الْيَمَانِيَ.
also referenced under: Book 15, Hadith 269 (In-Book) & Hadith 1267 (Reference)