Abu Umama reported the Prophet as saying, “He who does not join a war-like expedition, or equip a warrior, or look well after a warrior’s family when he is away, will be smitten by God with a sudden calamity before the day of resurrection.”
‘Imran b Husain reported God’s Messenger as saying, “A section, of my people will continue to fight for the right and overcome their opponents till the last of them fight with the antichrist."
Ibn ‘Abbas reported the Prophet as saying on the day of the Conquest of Mecca, “There is no emigration after the Conquest, but only jihad and some good intention; so when you are summoned to fight, go forth.”