Sunan an-Nasa'i 4084
سنن النسائي#4084SahihIt was narrated that 'Abdullah bin 'Amr said:"I heard the Messenger of Allah [SAW] say: 'Whoever fights to protect his wealth and is killed, 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 ZaiSahih
In-book reference: 37:119