الْفُرْقَانِ · 53

۞وَهُوَ ٱلَّذِي مَرَجَ ٱلۡبَحۡرَيۡنِ هَٰذَا عَذۡبࣱ فُرَاتࣱ وَهَٰذَا مِلۡحٌ أُجَاجࣱ وَجَعَلَ بَيۡنَهُمَا بَرۡزَخࣰ ا وَحِجۡرࣰ ا مَّحۡجُورࣰ ا

It is He Who has let free the two bodies of flowing water: One palatable and sweet, and the other salt and bitter; yet has He made a barrier between them, a partition that is forbidden to be passed