Obligation of Jihad Riyad as-Salihin 1306
Arabic hadith text
وعن زيد بن خالد، رضي الله عنه أن رسول الله صلى الله عليه وسلم قال: "من جهز غازيًا في سبيل الله فقد غزا ومن خلف غازيا في أهله بخير فقد غزا" ((متفق عليه))
Translation
Zaid bin Khalid (May Allah be pleased with him) reported
The Messenger of Allah (ﷺ) said, "He who equips a Ghazi (fighter) in the way of Allah is as if he has taken part in the fighting himself; and he who looks after the dependants of a Ghazi in his absence, is as if he has taken part in the fighting himself."[Al-Bukhari and Muslim].