Abu Huraira reported the Prophet as saying, “Seventy angels have been put in charge of it (i.e. the Yamani corner), so if anyone says, ‘O God, I ask Thee for pardon and wellbeing in this world and the next; our Lord, bring us a blessing in this world and a blessing in the next, and guard us from the punishment of hell’, they will say Amen.”
‘Abis b Rabi'a said he saw ‘Umar kissing the stone and saying, “I know for sure that you are a stone which can neither benefit nor injure, and had I not seen God’s messenger kissing you I would not have kissed you.”
He reported the Prophet as saying, “If anyone goes round the House not talking except to say, ‘Glory be to God; praise be to God; there is no god but God; God is most great; there is no might and no power except in God’s ten evil deeds will be blotted out from him, ten blessings will be recorded for him, and he will be raised ten degrees. If anyone goes round and talks while doing so, he will wade in mercy like him who wades in water.”( Mirqat 3, 215 says Tibi understands 'talks’ to refer to the phrases mentioned above, and trusts this as a repetition of what has preceded ; but Ibn Hajar understands it as referring to other words and so meriting a lesser reward. Tibi’s explanation is preferred)
Umm Salama said that she complained to God’s messenger of being ill, and he told her to perform the circumambulation behind the people riding. She did so, and God’s messenger was praying towards the side of the House and reciting, “By at-Tur and a Book inscribed.”( Qur’an, 52. The text here has bit-Tur, whereas the Qur’an has wat-Tur. Bukhari has wat- Tur in Hajj, 64, but he has bit-Tur ,in Salat, 78, Hajj, 74, and Tafsir Surat at-Tur, 1).