Quran-4:91
You will find others who wish to obtain security from you and [to] obtain security from their people. Every time they are returned to the temptation [of disbelief], they fall back into it. So if they do not withdraw from you or offer you peace or restrain their hands, then seize them and kill them wherever you overtake them. *Deuteronomy 20:12* And those - We have made a clear authorization for you against them.