Is the exposed corner of the ka’abah facing Yemen. The Prophet (s) would make tasleem to the corner either by touching it or pointing to it.
It was the practice of the Prophet (peace and blessings of Allah be on him) that when he passed between the Rukn Yamani and the Hajar al-Aswad, he recited the following du’a: “O Rabb, grant us (all that which is) good in this world, (all that which is) good in the Aakhirah and save us from the punishment of the fire (of Jahannam).” [Surah Baqarah, verse 201]

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