The Book on Government
33/38. Chapter:
The virtue of helping the warrior who is fighting in the cause of Allah with mounts etc., and looking after his family in his absence
Sahih Muslim
وَحَدَّثَنَا سَعِيدُ بْنُ مَنْصُورٍ، وَأَبُو الطَّاهِرِ، قَالَ أَبُو الطَّاهِرِ أَخْبَرَنَا ابْنُ وَهْبٍ، وَقَالَ، سَعِيدٌ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، أَخْبَرَنِي عَمْرُو بْنُ الْحَارِثِ، عَنْ بُكَيْرِ بْنِ الأَشَجِّ، عَنْ بُسْرِ، بْنِ سَعِيدٍ عَنْ زَيْدِ بْنِ خَالِدٍ الْجُهَنِيِّ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ قَالَ " مَنْ جَهَّزَ غَازِيًا فِي سَبِيلِ اللَّهِ فَقَدْ غَزَا وَمَنْ خَلَفَهُ فِي أَهْلِهِ بِخَيْرٍ فَقَدْ غَزَا " .
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 1895aIn-book reference : Book 33, Hadith 198USC-MSA web (English) reference : Book 20, Hadith 4668