At-Tawbah 9:121

Wala yunfiqoona nafaqatan sagheeratanwala kabeeratan wala yaqtaAAoona wadiyanilla kutiba lahum liyajziyahumu Allahu ahsanama kanoo yaAAmaloon

Nor do they spend an expenditure, small or large, or cross a valley but that it is registered for them that Allāh may reward them for the best of what they were doing.

Whatever they spend, be it less or more, and whenever they cross a valley, is all written down for them, so that Allah may give them the best reward for what they used to do.