مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1652
Musnad of Sa'eed bin Zaid bin 'Amr bin Nufail
It was narrated that Sa"eed bin Zaid said: The Messenger of Allah (ﷺ) said: “Whoever is killed defending his property is a martyr; whoever is killed defending his family is a martyr; whoever is killed defending his religion is a martyr; whoever is killed defending his life is a martyr."
Musnad Ahmad 1652lts isnad is qawi]