Surah Al-Baqarah, Verse 265

وَمَثَلُ ٱلَّذِينَ يُنفِقُونَ أَمۡوَٰلَهُمُ ٱبۡتِغَآءَ مَرۡضَاتِ ٱللَّهِ وَتَثۡبِيتٗا مِّنۡ أَنفُسِهِمۡ كَمَثَلِ جَنَّةِۭ بِرَبۡوَةٍ أَصَابَهَا وَابِلٞ فَـَٔاتَتۡ أُكُلَهَا ضِعۡفَيۡنِ فَإِن لَّمۡ يُصِبۡهَا وَابِلٞ فَطَلّٞۗ وَٱللَّهُ بِمَا تَعۡمَلُونَ بَصِيرٌ٢٦٥

wamathalu alladhīna yunfiqūna amwālahumu ib'tighāa marḍāti l-lahi watathbītan min anfusihim kamathali jannatin birabwatin aṣābahā wābilun faātat ukulahā ḍiʿ'fayni fa-in lam yuṣib'hā wābilun faṭallun wal-lahu bimā taʿmalūna baṣīrun

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.