Sunan an-Nasa'i 4092

سنن النسائي#4092Sahih

أَخْبَرَنَا أَحْمَدُ بْنُ نَصْرٍ، قَالَ حَدَّثَنَا الْمُؤَمَّلُ، عَنْ سُفْيَانَ، عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ، عَنْ سُلَيْمَانَ بْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ مَنْ قُتِلَ دُونَ مَالِهِ فَهُوَ شَهِيدٌ ‏"‏ ‏.‏

It was narrated from Sulaiman bin Buraidah that his father said:"The Messenger of Allah [SAW] said: 'Whoever is killed defending his wealth, he is a martyr

Scholarly Authentication

The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:

Abu GhuddahSahih Lighairihi
Al-AlbaniSahih
Zubair Ali ZaiSahih

In-book reference: 37:127