(Ashoora) 42 : 41
وَلَمَنِ انْتَصَرَ بَعْدَ ظُلْمِهِ فَأُولَٰئِكَ مَا عَلَيْهِمْ مِنْ سَبِيلٍ

And whoever is helped after he is wronged, then there is no any way to take action upon them.

‘Upon them’ means upon the believers. That means being the part of self defense by the one who is undergone for injustice or being the part of helping him by others, if the wrong doer affects any evil or distress, the believers are not allowed to take any action upon the one who is wronged and who helped him.
When the Messenger told: You help the wrongdoer and the one who is wronged; the companions asked: We know how to help the one who is wronged, but how is it possible to help the wrong doer? The Messenger replied: It is to retreat the wrongdoer from his injustice. Since there is no any group of believers anywhere in the world, the only way to retreat the people from the Satanic deeds and influences as explained in verses 2: 168-169 is to propagate Adhikr among the mankind and familiarize the Lord Allah to them, and by quoting the verses 17: 13-14 which say that ‘each individual is bearing his/ her Book of deed around his/her neck which will be given to him/her on the Day of Judgement as an illuminated open book and will be told to him/ her: You read your book, you are enough for doing your reckoning this Day’, make them aware that all deeds, words as well as thoughts of each individual after the age of fifteen are being inscribed in that book. See explanation 4: 135; 17: 36, and 41: 19-24.