The Prophet ﷺ said, "Whoever is killed defending his property is a martyr."
حدثنا مؤمل حدثنا حماد عن قتادة عن شهر
أن النبي ﷺ قال المقتول دون ماله شهيد
No references are available.
Its isnad is sahih, and it is a repetition of 6956.