Sayyiduna Zayd bin Khalid al-Juhani رضي الله عنه narrates this statement of the Noble Prophet صلى الله عليه وسلم: "Whoever equips a fighter in the way of Allah, it is as if he has also participated in jihad, and whoever looks after the family of a mujahid in his absence, it is as if he has also participated in jihad."
Hadith Referenceصحیح ابن حبان / كتاب السير / 4631
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «صحيح أبي داود» (2266): ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم