Surah Ar-Rahman, verse 21

مَرَجَ ٱلْبَحْرَيْنِ يَلْتَقِيَانِ ﴿١٩﴾

He released the two seas, meeting [one another];

بَيْنَهُمَا بَرْزَخٌۭ لَّا يَبْغِيَانِ ﴿٢٠﴾

Between them is a barrier so neither of them transgresses.

يَخْرُجُ مِنْهُمَا ٱللُّؤْلُؤُ وَٱلْمَرْجَانُ ﴿٢٢﴾

From both of them emerge pearl and coral.

فَبِأَىِّ ءَالَآءِ رَبِّكُمَا تُكَذِّبَانِ ﴿٢٣﴾

So which of the favors of your Lord would you deny?