That the Messenger of Allah ﷺ said, "Whoever prepares a fighter in Allah's cause, he has participated in a military expedition, and whoever looks after the family of a fighter, he has participated in a military expedition."

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ مَنْ جَهَّزَ غَازِيًا فِي سَبِيلِ اللَّهِ فَقَدْ غَزَا وَمَنْ خَلَفَ غَازِيًا فِي أَهْلِهِ فَقَدْ غَزَا