The Prophet ﷺ said, "Whoever does not go out to fight, or equip a fighter, or look after a fighter's family in his absence with kindness, Allah, glorified be He, will strike him with a calamity before the Day of Resurrection."
عن النبي ﷺ قال: من لم يغز، أو يجهز غازيا، أو يخلف غازيا في أهله بخير أصابه الله سبحانه بقارعة قبل يوم القيامة.
Reported by Abu Dawud (2503), Ibn Majah (2762), and Darimi (2462) through routes from Walid bin Muslim, who said, "Yahya bin Harith Dhamari narrated to us, from Qasim bin Abdul-Rahman, from Abu Umama," and he related it.Its chain is hasan because of Qasim bin Abdul-Rahman, for there is disagreement about him, though his hadith is hasan.