وَهُوَ الَّذي مَرَجَ البَحرَينِ هـٰذا عَذبٌ فُراتٌ وَهـٰذا مِلحٌ أُجاجٌ وَجَعَلَ بَينَهُما بَرزَخًا وَحِجرًا مَحجورًا

And it is He who has released [simultaneously] the two seas, one fresh and sweet and one salty and bitter, and He placed between them a barrier and prohibiting partition.