Abu Umamah (May Allah be pleased with him) reported:
The Prophet (ﷺ) said, "He who neither takes part in fighting nor equips a warrior nor looks after his (the warrior's) family, will be afflicted by severe calamities before the Day of Resurrection."[Abu Dawud].
App reference: Book 12, Hadith 64
Arabic/English book reference: Book 12, Hadith 1348