Quran 25:53 — Surah Al-Furqan, ayah 53

۞وَهُوَ ٱلَّذِي مَرَجَ ٱلۡبَحۡرَيۡنِ هَٰذَا عَذۡبٞ فُرَاتٞ وَهَٰذَا مِلۡحٌ أُجَاجٞ وَجَعَلَ بَيۡنَهُمَا بَرۡزَخٗا وَحِجۡرٗا مَّحۡجُورٗا

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

On je dvije vodene površine jednu pored druge ostavio – jedna je pitka i slatka, druga slana i gorka, a između njih je pregradu i nevidljivu branu postavio.