ABUDAWUD 2509: from Zayd b. Khālid al-Juhanī —
Zaid bin Khalid al Juhani reported that Apostle of Allaah ﷺ as saying “He who equips a fighter in Allaah’s path has taken part in the fighting. And he looks after a fighter’s family when he is away has taken part in the fighting.”

أبو داود ٢٥٠٩: عن زيد بن خالد الجهني —
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ جَهَّزَ غَاَزِيًا فِي سَبِيلِ اللَّهِ فَقَدْ غَزَا وَمَنْ خَلَفَهُ فِي أَهْلِهِ بِخَيْرٍ فَقَدْ غَزَا


Sound (Albānī)
Abū Dāwūd > Jihād > § What Is Accepted As Participation In Battle
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