أَنزَلَ مِنَ ٱلسَّمَآءِ مَآءً فَسَالَتْ أَوْدِيَةٌۢ بِقَدَرِهَا فَٱحْتَمَلَ ٱلسَّيْلُ زَبَدًا رَّابِيًا ۚ وَمِمَّا يُوقِدُونَ عَلَيْهِ فِى ٱلنَّارِ ٱبْتِغَآءَ حِلْيَةٍ أَوْ مَتَـٰعٍ زَبَدٌ مِّثْلُهُۥ ۚ كَذَٰلِكَ يَضْرِبُ ٱللَّهُ ٱلْحَقَّ وَٱلْبَـٰطِلَ ۚ فَأَمَّا ٱلزَّبَدُ فَيَذْهَبُ جُفَآءً ۖ وَأَمَّا مَا يَنفَعُ ٱلنَّاسَ فَيَمْكُثُ فِى ٱلْأَرْضِ ۚ كَذَٰلِكَ يَضْرِبُ ٱللَّهُ ٱلْأَمْثَالَ
anzala mina l-samāi māan fasālat awdiyatun biqadarihā fa-iḥ'tamala l-saylu zabadan rābiyan wamimmā yūqidūna ʿalayhi fī l-nāri ib'tighāa ḥil'yatin aw matāʿin zabadun mith'luhu kadhālika yaḍribu l-lahu l-ḥaqa wal-bāṭila fa-ammā l-zabadu fayadhhabu jufāan wa-ammā mā yanfaʿu l-nāsa fayamkuthu fī l-arḍi kadhālika yaḍribu l-lahu l-amthāla
He sends water from the sky that fills riverbeds to overflowing, each according to its measure. The stream carries on its surface a growing layer of froth, like the froth that appears when people melt metals in the fire to make ornaments and tools: in this way God illustrates truth and falsehood- the froth disappears, but what is of benefit to man stays behind- this is how God makes illustrations.
He sends down water (rain) from the sky, and the valleys flow according to their measure, but the flood bears away the foam that mounts up to the surface - and (also) from that (ore) which they heat in the fire in order to make ornaments or utensils, rises a foam like unto it, thus does Allâh (by parables) show forth truth and falsehood. Then, as for the foam it passes away as scum upon the banks, while that which is for the good of mankind remains in the earth. Thus Allâh sets forth parables (for the truth and falsehood, i.e. Belief and disbelief).