Quran 25:53 from Surah Al-Furqaan on Divine Marvels.
۞وَهُوَ ٱلَّذِي مَرَجَ ٱلۡبَحۡرَيۡنِ هَٰذَا عَذۡبٞ فُرَاتٞ وَهَٰذَا مِلۡحٌ أُجَاجٞ وَجَعَلَ بَيۡنَهُمَا بَرۡزَخٗا وَحِجۡرٗا مَّحۡجُورٗا
English translation: And He (is) the One Who (has) released the two seas [this] (one) palatable and sweet and [this] (one) salty (and) bitter and He has made between them a barrier and a partition forbidden
Transliteration: wahuwa alladhi maraja al-bahrayni hadha adhbun furatun wahadha mil'hun ujajun waja'ala baynahuma barzakhan wahij'ran mahjuran