Sahih Muslim | Book 7 | Chapter 38

Narrated by Abdullah b. Umar
Abdullah b. Umar (reported) that he had not seen Allah's Messenger (way peace he upon him) touching anything in the House, except the two Yamani corners.
Narrated by Salim
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.

Narrated by Nafi'
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.

Narrated by Ibn 'Umar (Allah be pleased with them)
Ibn 'Umar (Allah be pleased with them) reported: I have not abandoned touching of Yamani corners (and kissing of) the Stone since I saw Allah's Messenger (may peace be upon him) touching them both In hardship and ease.

Narrated by Nafi' (Allah be pleased with him)
Nafi' (Allah be pleased with him) reported: I saw' Ibn 'Umar (Allah be pleased with them) 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 (way peace be upon him) doing It.

Narrated by Ibn 'Abbas
Ibn 'Abbas (Allah be pleased with them) is reported to have said that he did not see Allah's Messenger (may peace be upon him) touching other than the Yamani corners.