If a person dreams that he killed someone, he will do something serious, and it was said that he will break the fast of Ramadan deliberately,because the expiation for breaking the fast in Ramadan is the same asthe expiation for killing a person accidentally.
And it was said that it is indicative of relief from stress, because Allah says:
“Then you did kill a man, but We saved you from great distress.
And the one who kills and the one who is killed (in a dream) maybe forced to commit sin. A woman dreamt that she killed her husband with some other people.
He said to her: Did you force your husband to commit sin? She said: Yes.If he dreams that he is killing a man without slaughtering, the victim will get something good from the killer. Or it was said that the victim will be given victory, because Allah says:
“And whoever is killed wrongfully (Mazlooman intentionally with hostility and oppression and not by mistake), We have given his heir the authority [to demand Qisaas, – Law of Equality in punishment – or to forgive, or to take Diyah (blood money)]