Az-Zubair reported: The Messenger of Allah, peace be upon him, said, “If someone unsheathes his sword and strikes people with it, then it is permissible to shed his blood.”
[Sunan An-Nasa’i, Book 37, Number 4102, Sahih]
عَنْ ابْنِ الزُّبَيْرِعَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ شَهَرَ سَيْفَهُ ثُمَّ وَضَعَهُ فَدَمُهُ هَدَرٌ
سنن النسائي كتاب تحريم الدم من شهر سيفه ثم وضعه في الناس
