al-Waleed bin Muslim bin Shahab الوليد بن مسلم بن شهاب · Jihad (Kitab Al-Jihad)

Abu Hurairah reported the Prophet (ﷺ) as saying “He who dies without having fought or having felt fighting (against the infidels) to be his duty will die guilty of a kind of hypocrisy.”

The Prophet (ﷺ) sent a detachment. I gave a sword to a man from among them. When he came back, he said: Would that you saw us how the Messenger of Allah (ﷺ) rebuked us, saying: When I sent out a man who does not fulfil my command, are you unable to appoint in his place one who will fulfil my command.