The Black Stone - Hajar al- Aswad - is NOT mentioned in the Quran. The Black Stone is located about five feet from the ground on the East corner of the Kaaba (this corner is known as “al-rukn al-Aswad”).
While there are traditions about kissing or touching the Stone, its real significance is as marker of the point at which one starts the Tawaaf (circumambulation of the Kaaba as part of hajj or umra). Even the traditions which talk about kissing or touching the stone are VERY CLEAR that the Stone is JUST A STONE!
BUKHARI:
Volume 2, Book 26, Number 667:
Narrated 'Abis bin Rabia: Umar came near the Black Stone and kissed it and said “NO DOUBT, I KNOW THAT YOU ARE A STONE AND CAN NEITHER BENEFIT ANYONE NOR HARM ANYONE. Had I not seen Allah’s Apostle kissing you I would not have kissed you.”
Volume 2, Book 26, Number 675:
Narrated Zaid bin Aslam from his father who said: “Umar bin Al-Khattab addressed the Corner (Black Stone) saying, ‘BY ALLAH! I KNOW THAT YOU ARE A STONE AND CAN NEITHER BENEFIT NOR HARM. Had I not seen the Prophet touching (and kissing) you, I would never have touched (and kissed) you.’ Then he kissed it and said, ‘There is no reason for us to do Ramal (in Tawaf) except that we wanted to show off before the pagans, and now Allah has destroyed them.’ 'Umar added, ‘(Nevertheless), the Prophet did that and we do not want to leave it (i.e. Ramal).’”
MUSLIM:
Book 007, Number 2914:
Abdullah b. Sarjis reported: I saw the bald one, i. e. 'Umar b. Khattib (Allah be pleased with him). kissing the Stone and saying: BY ALLAH. I AM KISSING WITH FULL CONSCIOUSNESS OF THE FACT THAT YOU ARE A STONE AND THAT YOU CAN NEITHER DO ANY HARM NOR GOOD; and if I had not seen Allah’s Messenger (may peace be upon him) kissing you. I would not have kissed you.
The Stone is not be worshiped or regarded as anything but a marker.
