Ahdullah bin 'Umar (reported) that he had not seen Allah's Messenger (may peace he upon him) touching anything in the House, except the two Yamani corners.
Salim reported on the authority of his father (Allah he pleased with him) that Allah's Messenger (ﷺ) 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.
Ibn 'Umar (RA) reported: I have not abandoned touching of Yamani corners (and kissing of) the Stone since I saw Allah's messneger (ﷺ) touching them both in hardship and ease.
Nafi' (RA) reported: I saw 'ibn 'Umar (RA) touching the Stone with his hand and then kissing his hand and he said: I have never abandoned it since I saw Allah's Messenger (ﷺ) doing it.