Sunan an-Nasa'i 4091
سنن النسائي#4091SahihIt was narrated from Sa'eed bin Zaid that:The Prophet [SAW] said: "Whoever is killed defending his wealth, 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 ZaiHasan
In-book reference: 37:126