وَلَا يُنفِقُونَ نَفَقَةً صَغِيرَةً وَلَا كَبِيرَةً وَلَا يَقْطَعُونَ وَادِيًا إِلَّا كُتِبَ لَهُمْ لِيَجْزِيَهُمُ اللَّهُ أَحْسَنَ مَا كَانُوا يَعْمَلُونَ

And neither do they incur any expense, big or small, nor do they cross any valley, but it is written to their account, so that Allah may reward them by the best of what they used to do.