The sticker placed on the hand after the release of the marriage and its effect on ritual purity

The questioner:
He says: Honorable Shaykh, may Allah grant you success. The questioner says: Some tests are done on the hand, and the device is left in place for more than two days.

The Shaykh:
What are the analyses?

The questioner:
The sticker that goes on after the test.

The Shaykh:
Sometimes a screen is placed on the site where blood is drawn, or it stays for two or three minutes, and then it is removed because it is no longer needed. It is not on a wound, yes, but it is placed to keep the skin closed so that no blood comes out, and this does not take much time. Yes.

Another questioner:
May Allah reward you. There is a type of movement; some illnesses require things like needles.

The Shaykh:
Yes.

Another questioner:
May Allah guide you. It is placed on the hand for seventy-two hours. How do you place it for some illnesses?

The Shaykh:
I did not understand this; I do not know about it. Yes.