Surah Al-Fatir (The Originator), Verse 12

وَمَا یَسْتَوِی الْبَحْرٰنِ هٰذَا عَذْبٌ فُرَاتٌ سَآىِٕغٌ شَرَابُهٗ وَهٰذَا مِلْحٌ اُجَاجٌ وَمِنْ كُلٍّ تَاْكُلُوْنَ لَحْمًا طَرِیًّا وَّتَسْتَخْرِجُوْنَ حِلْیَةً تَلْبَسُوْنَهَا وَتَرَی الْفُلْكَ فِیْهِ مَوَاخِرَ لِتَبْتَغُوْا مِنْ فَضْلِهٖ وَلَعَلَّكُمْ تَشْكُرُوْنَ ۟

Wa maa yastawil bahraani haaza 'azbun furaatun saaa'ighun sharaabuhoo wa haazaa milhun ujaaj; wa min kullin ta'kuloona lahman tariyyanw wa tastakhrijoona hilyatan talbasoonahaa wa taral fulka feehi mawaakhira litabtaghoo min fadlihee wa la'allakum tashkuroon

“Nor are the two bodies of flowing water alike,- the one palatable, sweet, and pleasant to drink, and the other, salt and bitter. Yet from each (kind of water) do ye eat flesh fresh and tender, and ye extract ornaments to wear; and thou seest the ships therein that plough the waves, that ye may seek (thus) of the Bounty of Allah that ye may be grateful.”

Quran 35:12 (Yusuf Ali Translation)