Hadith 4099
Chapter 26: The One Who Unsheathes His Sword and Starts to Strike the People With it - كتاب تحريم الدم
أَخْبَرَنَا أَبُو دَاوُدَ، قَالَ حَدَّثَنَا أَبُو عَاصِمٍ، عَنِ ابْنِ جُرَيْجٍ، عَنِ ابْنِ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ الزُّبَيْرِ، قَالَ مَنْ رَفَعَ السِّلاَحَ ثُمَّ وَضَعَهُ فَدَمُهُ هَدَرٌ .
It was narrated that Ibn Az-Zubair said:
"Whoever wields a weapon and starts to strike (the people) with it, it is permissible to shed his blood."
Reference : Sunan an-Nasa'i 4099
In-book reference : Book 37, Hadith 134