Riyad as-Salihin

Khalid Al-Juhani (May Allah be pleased with him) reported: The Prophet (ﷺ) said, "He who equips a warrior in the way of Allah (will get the reward of the one who has actually gone for Jihad); and he who looks after the family of a warrior in the way of Allah will get the reward of the one who has gone for Jihad".

[Al- Bukhari and Muslim].