What is the ruling on taking something from the Black Stone if a piece of it falls into the hand of a person who is caressing it?

Scholars have explicitly stated the prohibition of removing parts of the Haram, such as its soil or the Kaaba's coverings. How, then, can one consider removing parts of the Black Stone, which has no substitute, and which must remain in its place? Even if it splinters or breaks, it should be reattached in its original position and not transferred elsewhere. Therefore, your relative must return what he took from the parts of the Black Stone to those responsible for the affairs of the Haram.