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

He is the one who has released two bodies of water, one sweet and fresh, the other salty and bitter. He set a barrier and a prohibitive partition between them.