What does Islam say about jinn?

“Men got some of their works done through jinnaat, for example jinnaat can cover long distances in a short time, man profited in this way that some work gets done in a short time.”

“As-salaamu `alaykum wa-ramatullahi wa-barakatuh. You state that you seem to have attracted a jinn. We advise you to refer to a reliable Aamil or Raaqi (expert in jinn and black magic issues) and have yourself examined.”

“1. The believing Jinn generally live in the mountains and inhabited places, whilst the Mushrik Jinn live in the valleys and islands. Those living in the towns and villages generally do not inconvenience and bother people, whilst the ones living in the mountains bother people.”

“The presence of Jādū/Sihr (black magic) and Jinn is undoubtedly common in the world. It cannot be entirely negated and overlooked because the Qur’ān and Ahādīth also to allude to the different aspects regarding this.”