(38) باب فَضْلِ إِعَانَةِ الْغَازِي فِي سَبِيلِ اللَّهِ بِمَرْكُوبٍ وَغَيْرِهِ وَخِلاَفَتِهِ فِي أَهْلِهِ بِخَيْرٍ
It has been narrated on the authority of Zaid b. Khalid al-Juhani that the Messenger of Allah (ﷺ) said:
Anybody who equips a warrior (going to fight) in the way of Allah (is like one who actually) fights. And anybody who looks well after his family in his absence (is also like one who actually) fights.
Reference: Sahih Muslim 1895 a
In-book reference: Book 33, Hadith 198
USC-MSA web (English) reference(deprecated numbering scheme): Book 20, Hadith 4668