(17) باب الأَمْرِ وَالنَّهْىِ
Narrated AbuSa'id al-Khudri:
The Prophet (ﷺ) said: The best fighting (jihad) in the path of Allah is (to speak) a word of justice to an oppressive ruler. (DE)
Reference (DE): Sunan Abi Dawud 4344 (DE)
In-book reference (DE): Book 39, Hadith 54 (DE)
English translation (DE): Book 38, Hadith 4330 (DE)