Sadly, many people believe in superstitions. They think that if you break a mirror or if a black cat passes by you, something bad will happen to you. Several Muslims often fall for such baseless ideas in their culture and people assume that those superstitious ideas might have some basis in Islam. Islam does not believe in superstitious ideas or bad luck. The Prophet fought against such ideas that existed in his time.
Shaykh Mustafa Umar