Al-Baqarah 2:265 ومثل الذين ينفقون اموالهم ابتغاء مرضات الله وتثبيتا من انفسهم كمثل جنة بربوة اصابها وابل فاتت اكلها ضعفين فان لم يصبها وابل فطل والله بما تعملون بصير ٢٦٥

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.

And the example of those who spend their wealth seeking means to the approval of Allāh 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 Allāh, of what you do, is Seeing.