After Abraham finished building
the Ka’bah, one rock was missing (in order to complete the
Ka’bah) so he asked Ishmael to look for a rock. He searched
and upon returning he found that his father had already inserted
a rock. So he asked his father, “O father where did you get
this rock from?” He said, “Gabriel brought it to me from the
Heavens.” And thus they completed the building of the Ka’bah.
When this rock was sent down from the heavens, it was whiter
than milk. The Prophet said:
“The Black Stone was sent down from the heavens whiter than
milk, but yet it was blackened by the sins of man.” (Tirmidthi)
The Black Stone is positioned at the south corner of the
Ka’bah next to its door. It is about 1.10 meters above the
ground and is set into the wall of the Ka’bah. The one who circumambulates
around the Ka’bah must make sure the Black
Stone is to their left.