Sunan an-Nasa'i 4095
سنن النسائي#4095SahihIt was narrated that Sa'eed bin Zaid said:"The Messenger of Allah [SAW] 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 37:130