Surah Ar-Ra'd, ayah 17

13:17

أَنزَلَ مِنَ ٱلسَّمَآءِ مَآءٗ فَسَالَتۡ أَوۡدِيَةُۢ بِقَدَرِهَا فَٱحۡتَمَلَ ٱلسَّيۡلُ زَبَدٗا رَّابِيٗاۖ وَمِمَّا يُوقِدُونَ عَلَيۡهِ فِي ٱلنَّارِ ٱبۡتِغَآءَ حِلۡيَةٍ أَوۡ مَتَٰعٖ زَبَدٞ مِّثۡلُهُۥۚ كَذَٰلِكَ يَضۡرِبُ ٱللَّهُ ٱلۡحَقَّ وَٱلۡبَٰطِلَۚ فَأَمَّا ٱلزَّبَدُ فَيَذۡهَبُ جُفَآءٗۖ وَأَمَّا مَا يَنفَعُ ٱلنَّاسَ فَيَمۡكُثُ فِي ٱلۡأَرۡضِۚ كَذَٰلِكَ يَضۡرِبُ ٱللَّهُ ٱلۡأَمۡثَالَ ١٧

Anzala minas-samā'i mā'an fasālat awdiyatu biqadarihā fahtamalas-saylu zabadar rābiyan wamimmā yūqidūna 'alayhi fin-nāribtighā'a hilyatin aw matā'in zabadum mithluhū kadhālika yadribullāhul-haqqa wal-bātila fa ammaz-zabadu fayadhhabu jufā'an wa ammā mā yanfa'un-nāsa fayamkuthu fil-ardi kadhālika yadribullāhul-amthāl

He sends down from the sky, rain, and valleys flow according to their capacity, and the torrent carries a rising foam. And from that [ore] which they heat in the fire, desiring adornments and utensils, is a foam like it. Thus Allāh presents [the example of] truth and falsehood. As for the foam, it vanishes, [being] cast off; but as for that which benefits the people, it remains on the earth. Thus does Allāh present examples.