When a person curses something, the curse ascends to heaven and the gates of heaven are closed against it. Then it descends to earth and its gates are closed against it. Then it turns right and left and when it finds no exit it returns to what was cursed if it deserves to be cursed; otherwise it rebounds to the one who uttered it

Explanation

If the slave of Allah curses something with his tongue, his curse ascends to the heavens, however the gates of the heavens are closed against it. Then it returns back to earth, and the gates of earth are also closed and it is not admitted therein. Then it turns right and left, and if it does not find a way or a place to settle in, it returns to the thing that was cursed if it deserves to be cursed; otherwise, it returns to and afflicts the one who uttered it.