Sunan an-Nasa'i, Volume 5, Book 37, Hadith 4091 (DarusSalam) ⓘ
It was narrated from 'Abdullah bin 'Amr bin Al-'As that: The Messenger of Allah [SAW] said: "Whoever is killed defending his wealth and is killed unjustly, Paradise will be his."
أَخْبَرَنِي عُبَيْدُ اللَّهِ بْنُ فَضَالَةَ بْنِ إِبْرَاهِيمَ النَّيْسَابُورِيُّ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، قَالَ حَدَّثَنَا سَعِيدٌ، قَالَ أَنْبَأَنَا أَبُو الأَسْوَدِ، مُحَمَّدُ بْنُ عَبْدِ الرَّحْمَنِ عَنْ عِكْرِمَةَ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرِو بْنِ الْعَاصِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنْ قُتِلَ دُونَ مَالِهِ مَظْلُومًا فَلَهُ الْجَنَّةُ " .
also referenced under: Hadith 4086 (Reference) & Book 37, Hadith 121 (In-Book)