ENOfficial
It was narrated from Sa'eed bin Zaid that: The Prophet (ﷺ) said: "Whoever is killed defending his wealth, he is a martyr." This is an abridgement of it.
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَقُتَيْبَةُ، - وَاللَّفْظُ لإِسْحَاقَ - قَالاَ أَنْبَأَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ طَلْحَةَ بْنِ عَبْدِ اللَّهِ بْنِ عَوْفٍ، عَنْ سَعِيدِ بْنِ زَيْدٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " مَنْ قُتِلَ دُونَ مَالِهِ فَهُوَ شَهِيدٌ " .
sunnah.com