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.
Sahih Muslim Book 15, Hadith 269
← Previous Hadith Salim reported on the authority of his father (Allah he pleased with him) that Allah'& Messenger (tinny peace be upon him) did not touch any of the corners of the House. except that of Black Corner (in which the Black Stone is embedded and that (portion) near it, towards the houses of the tribe of jumuhi.

Sahih Muslim Book 15, Hadith 268 Next Hadith → I have not abandoned touching of Yamani corners (and kissing of) the Stone since I saw Allah's messenger (ﷺ) touching them both In hardship and ease.

Sahih Muslim Book 15, Hadith 270