Many people say that Rooh (Soul) of bad people remain in the world and because of his evil deeds he cannot reach the next world.
Advocate Faiz Syed said that these things are lies and myths because Prophet Muhammad (Pbuh) has explained this issue when he told us about Rooh.
Rooh doesn’t remain in the world rather they all gather in ‘Barzak’. If the Rooh is of a man who did good deeds then he will be shown his place in jannah and he will sleep until the day of Judgment. If a man did bad deeds then he will be under punishment till the date of judgment.
 Of Dead People Return To Our World?){kind=link}