What did the Prophet Muhammad (saw) do when he came to corner having the Black Stone during his Tawaf (circumambulation) of the Ka`aba?
 Narrated Ibn `Abbas:                     Allah's Apostle performed Tawaf (of the Ka`ba) ending a camel (at that time the Prophet had foot injury). Whenever he came to the Corner (having the Black Stone) he would point out towards it with a thing in his hand and say, "Allahu-Akbar."