سورة At-Taubah ( The Repentance ) - الآية 121

Nor do they spend anything (in Allah's Cause) - small or great - nor cross a valley, but is written to their credit, that Allah may recompense them with the best of what they used to do (i.e. Allah will reward their good deeds according to the reward of their best deeds which they did in the most perfect manner).