"I was sitting with Suwaid bin Muqarrin, and he said: The Messenger of Allah said: "Whoever is killed defending himself against injustice, he is a martyr."
Sunan an-Nasa'i Book 37, Hadith 131
← Previous Hadith "The Messenger of Allah said: 'Whoever is killed protecting his wealth, he is a martyr. Whoever is killed protecting his family, he is a martyr. Whoever is killed protecting his religion, he is a martyr. Whoever is killed protecting himself, he is a martyr.'"

Sunan an-Nasa'i Book 37, Hadith 130 Next Hadith → The Messenger of Allah said: "Whoever unsheathes his sword and starts to strike the people with it, it is permissible to shed his blood."

Sunan an-Nasa'i Book 37, Hadith 132