Question 470: Some people, after finishing washing the Honored Ka`bah, seek blessings and cure by taking the remaining water. They also take the leaves of the sweepers made from palm leaves that are used to sweep the Ka`bah’s floor. Furthermore, they cut off a piece of the thread used in covering the Ka`bah seeking blessings from it. What is the ruling on these acts?
Answer: It is impermissible to do these acts, as there is no evidence that affirm them and they may lead to committing Shirk (associating others with Allaah in His Divinity or worship). However, you are prescribed to face the Honored Ka`bah when performing Salah, to make Tawaaf (circumambulation of the Ka`bah) and to have respect for it without exceeding the proper limits nor committing Bidd`ah... read more here.