﴿ وَمَا يَسْتَوِى ٱلْبَحْرَانِ هَٰذَا عَذْبٌۭ فُرَاتٌۭ سَآئِغٌۭ شَرَابُهُۥ وَهَٰذَا مِلْحٌ أُجَاجٌۭ ۖ وَمِن كُلٍّۢ تَأْكُلُونَ لَحْمًۭا طَرِيًّۭا وَتَسْتَخْرِجُونَ حِلْيَةًۭ تَلْبَسُونَهَا ۖ وَتَرَى ٱلْفُلْكَ فِيهِ مَوَاخِرَ لِتَبْتَغُوا۟ مِن فَضْلِهِۦ وَلَعَلَّكُمْ تَشْكُرُونَ ﴾

“[Easy is it for Him to create likeness and variety:] thus, the two great bodies of water [on earth] are not alike the one sweet, thirst-allaying, pleasant to drink, and the other salty and bitter: and yet, from either of them do you eat fresh meat, and [from either] you take gems which you may wear; and on either thou canst see ships ploughing through the waves, so that you might [be able to] go forth in quest of some of His bounty, and thus have cause to be grateful.”

Nor are the two kinds of seas alike this one is extremely sweet pleasant to drink and that one is salty extremely bitter. Yet from each of the two you eat fresh meat namely fish and obtain from the salt — and it is also said from both of them — ornaments which you wear namely pearls and coral. And you see you sight the ships therein in each of the two seas ploughing through mawākhira in other words tamkhuru’l-mā’a meaning ‘it cleaves it as it makes its way through it coming and going by the same wind that you may seek of His bounty exalted be He through commerce and that perhaps you may give thanks to God for this bounty.