وَهُوَ الَّذِىۡ مَرَجَ الۡبَحۡرَيۡنِ هٰذَا عَذۡبٌ فُرَاتٌ وَّهٰذَا مِلۡحٌ اُجَاجٌ ۚ وَجَعَلَ بَيۡنَهُمَا بَرۡزَخًا وَّحِجۡرًا مَّحۡجُوۡرًا
And He is the One Who joined two rivers, this (one) very sweet and freshening and that (other one) very salty and bitter. And He set a barrier and a strong partition between them.