Thabit (may Allah have mercy on him), the freed slave of Umar bin Abd al-Rahman, said that when what happened took place between Abdullah bin Amr (may Allah be pleased with them both) and Anbasah bin Abi Sufyan (may Allah be pleased with him), they prepared for fighting. So Khalid bin al-As (may Allah be pleased with him) rode to Abdullah bin Amr (may Allah be pleased with them both) and admonished him. Abdullah bin Amr (may Allah be pleased with them both) said: Do you not know that the Messenger of Allah (peace and blessings be upon him) said: "Whoever is killed defending his property is a martyr."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6059
Sayyiduna Abu Hurayrah (may Allah be pleased with him) said: A man came to the Messenger of Allah (peace and blessings be upon him) and said: O Messenger of Allah! What is your ruling (peace and blessings be upon him) if a man wants to take my property by force? He (peace and blessings be upon him) said: "Do not give him your property." He said: What if he fights me? He (peace and blessings be upon him) said: "Then fight him." He said: What if he kills me? He (peace and blessings be upon him) said: "Then you are a martyr." He said: What if I kill him? He (peace and blessings be upon him) said: "He is in the Fire."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6060
Sayyiduna Sa'id bin Zayd (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Whoever is killed defending his property is a martyr."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6061
It is narrated from Sayyiduna Sa'id bin Zayd (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Whoever is killed defending his property is a martyr; whoever is killed defending his family is also a martyr; and whoever is killed defending his own blood is also a martyr."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6062