That the Messenger of Allah ﷺ said, "Whoever prepares a fighter in Allah's cause, or looks after the family of a fighter, then he has participated in a military expedition."
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ جَهَّزَ غَازِيًا فِي سَبِيلِ اللَّهِ أَوْ خَلَفَهُ فِي أَهْلِهِ فَقَدْ غَزَا