Narrated by:Narrated Zaid bin Khalid Al-Juhani:
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." [Abu 'Eisa said:] This Hadith is Hasan Sahih.
حَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ ابْنِ أَبِي لَيْلَى، عَنْ عَطَاءٍ، عَنْ زَيْدِ بْنِ خَالِدٍ الْجُهَنِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم مَنْ جَهَّزَ غَازِيًا فِي سَبِيلِ اللَّهِ أَوْ خَلَفَهُ فِي أَهْلِهِ فَقَدْ غَزَا . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ .
Tirmizi
The Book on Virtues of Jihad • Hadith 1676