(The Truth vs Falsehood)
He sends down water from the sky, causing the valleys to overflow, then the rapids produce abundant foam. Similarly, when they use fire to refine metals for their jewelry or equipment, foam is produced. God thus cites analogies for the truth and falsehood. As for the foam, it goes to waste, while that which benefits the people stays close to the ground. God thus cites the analogies.
أَنزَلَ مِنَ السَّماءِ ماءً فَسالَت أَودِيَةٌ بِقَدَرِها فَاحتَمَلَ السَّيلُ زَبَدًا رابِيًا وَمِمّا يوقِدونَ عَلَيهِ فِى النّارِ ابتِغاءَ حِليَةٍ أَو مَتٰعٍ زَبَدٌ مِثلُهُ كَذٰلِكَ يَضرِبُ اللَّهُ الحَقَّ وَالبٰطِلَ فَأَمَّا الزَّبَدُ فَيَذهَبُ جُفاءً وَأَمّا ما يَنفَعُ النّاسَ فَيَمكُثُ فِى الأَرضِ كَذٰلِكَ يَضرِبُ اللَّهُ الأَمثٰلَ
anzala minas samaaa’i maaa’an fasaalat awdiyatum biqadarihaa fahtamalas sailu zabadar raabiyaa; wa mimmmaa yooqidoona ‘alaihi fin naarib tighaaa’a bilyatin aw mataa’in zabadum misluh; kazaalika yadribul laahul haqqa wal baatil; fa ammaz zabadu fa yazhabu jufaaa’aa; wa ammaa maa yanfa’un naasa fa yamkusu fil ard; kazaalika yadribul laahul amsaal