And the example of those who donate their wealth, seeking Allah’s pleasure and believing the reward is certain,1 is that of a garden on a fertile hill: when heavy rain falls, it yields up twice its normal produce. If no heavy rain falls, a drizzle is sufficient. And Allah is All-Seeing of what you do.
— Dr. Mustafa Khattab, the Clear Quran
And the example of those who spend their wealth seeking means to the approval of Allah and assuring [reward for] themselves is like a garden on high ground which is hit by a downpour - so it yields its fruits in double. And [even] if it is not hit by a downpour, then a drizzle [is sufficient]. And Allah, of what you do, is Seeing.
— Saheeh International