17th Ayah from Surah Ar Ra'd
Sahih International
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 Allah 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 Allah present examples.
Abdul Haleem
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.
Mohsin Khan/Hilali
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 Allah (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 Allah sets forth parables (for the truth and falsehood, i.e. Belief and disbelief).
Taqi Usmani
He sent down water from the heavens, so the canals flowed according to their capacity, and the flood carried bulging scum. And a similar scum comes up from what they melt in the fire to obtain ornaments or other objects. This is how Allah depicts the truth and the untruth. As for the scum, it goes to be thrown away, while that which benefits people remains on the earth. This is how Allah brings out the parables.
Pickthall
He sendeth down water from the sky, so that valleys flow according to their measure, and the flood beareth (on its surface) swelling foam - from that which they smelt in the fire in order to make ornaments and tools riseth a foam like unto it - thus Allah coineth (the similitude of) the true and the false. Then, as for the foam, it passeth away as scum upon the banks, while, as for that which is of use to mankind, it remaineth in the earth. Thus Allah coineth the similitudes.
Pickthall
He sends down water from the skies, and the channels flow, each according to its measure: But the torrent bears away to foam that mounts up to the surface. Even so, from that (ore) which they heat in the fire, to make ornaments or utensils therewith, there is a scum likewise. Thus doth Allah (by parables) show forth Truth and Vanity. For the scum disappears like forth cast out; while that which is for the good of mankind remains on the earth. Thus doth Allah set forth parables.