Say: “Surely, my Rabb extends His provision for whomever He wills of His servants and manages for him. And whatever you spend for the cause of Allah/provide sustenance, He will immediately compensate it. And He is the best of providers”. (Quran 34:39)
Those who (in charity) spend of their wealth (in Allah’s way) by night and by day, in secret and in public, have their reward with their Lord: And no fear will there be concerning them, nor will they grieve. (Quran 2:274)