Do Jinn harm mankind?

Shaikh Abu Bakr Al-Jaza'iri said: "The harm done by Jinn to humans is confirmed and cannot be denied.   It has been proved by both heard and tangible evidence, and it is also acceptable to the rational mind.  If it  were  not  for  the  angels  that  Allah (Glorified and Exalted be He) has  assigned  to  preserve mankind, none of the Jinn and demons would have survived, because humans  cannot  see  them,  and  they  have  the ability  to  transform quickly. Therefore,  there is no doubt that some Jinn harm  people  for different reasons,  such as when a person  harms them first by pouring hot water  on them  or urinating  on  them  or jumping  to  their  places without being aware of it, so they would avenge themselves and harm him/her.

Sometimes,  Jinn  harm  people  unjustly  without  any  reason,  as  also happens   among    mankind   themselves,    they   inflict   pain   among themselves  out of tyranny, because  of  their  corrupt  nature  and weak faith.

The young Ansari, in the previously mentioned authentic, Hadith killed the snake, which was actually a demon that transformed as soon as the snake died.   The demon in that incident avenged the snake and killed the young Ansari, who died so quickly that Abu Sa’id al-Khudri (may Allah be pleased with him) said: "It was not known who died first: the snake of the young man".

Because  this  fact  is  so  well-known  and  widely  accepted,   we  do  not need  to add further  evidence to support it. The incident of the young Ansari, mentioned in the Sahih book of Muslim, will suffice. But I will relate  another real life incident which my family and I witnessed and  endured:  I had  a sister named  Sa' diyya,   When  we were  very young,  we used to climb a rope up to the top of the house.   One day Sa'diyya fell from the top and landed apparently, top of some Jinn. Her landing might have hurt the Jinn badly, so he decided to avenge himself upon her.  He used to come to her three to four times a week - sometimes more - and suffocate her. She would struggle with her feet, like a slaughtered sheep, yet he would only leave her when she was nearly dead.  He  once  spoke  through  her,  admitting  that  he  was punishing  her because of the harm she had done to him on such a day, and  in  such  a place.    He  kept  on possessing   her  and  torturing  her during  her  sleep  until  he  killed  her,  after  ten  years  of  unbearable torture.  May Allah forgive her and bless her with His Mercy, Amin. This is an incident that I lived through and witnessed myself.  The one who witnesses something is not the same as someone who only heard about it![1]