Al-Kāfi - Volume 5 > The Case of one Murdered over His Stolen Property
Hadith #2

2- وَبِهَذَا الإسْنَادِ عَنْ أَبِي مَرْيَمَ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلام) قَالَ قَالَ رَسُولُ اللهِ (صَلَّى اللهُ عَلَيْهِ وَآلِه) مَنْ قُتِلَ دُونَ مَظْلِمَتِهِ فَهُوَ شَهِيدٌ ثُمَّ قَالَ يَا أَبَا مَرْيَمَ هَلْ تَدْرِي مَا دُونَ مَظْلِمَتِهِ قُلْتُ جُعِلْتُ فِدَاكَ الرَّجُلُ يُقْتَلُ دُونَ أَهْلِهِ وَدُونَ مَالِهِ وَأَشْبَاهِ ذَلِكَ فَقَالَ يَا أَبَا مَرْيَمَ إِنَّ مِنَ الْفِقْهِ عِرْفَانَ الْحَقِّ.

2. It is narrated from the narrator of the previous Hadith from abu Maryam from Abu Ja‘far, ‘Alayhi al-Salam, who has said the following: “The Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has said, ‘If one is murdered over his stolen property he is a martyr.’ He (the Imam) then said, ‘O abu Maryam, do you know what is ‘murdered over his stolen property’? I replied, ‘I pray to Allah to keep me in the service of your cause, it is when a man is murdered defending his family, property and similar things.’ He (the Imam) said, ‘It is of fiqh (proper understanding) to know the truth.’”