The likeness of those who spend their wealth in the Way of Allah, is as the likeness of a grain (of corn); it grows seven ears, and each ear has a hundred grains
Allah gives manifold increase to whom He pleases
And Allah is All-Sufficient for His creatures' needs, All-Knower-Holy Quran,Chapter 2,Verse 261

Whoever supports someone's preparation for a noble cause in the path of Allah or whoever cares for their family until they come back, indeed is as the one who walked the same steps-