55:20

بَيْنَهُمَا بَرْزَخٌ لَّا يَبْغِيَانِ

Transliteration:

Baynahuma barzakhun la yabghiyani

Word by Word:

Between both of them (is) a barrier, not they transgress.

Translations:

[yet] between them is a barrier which they may not transgress.

Between them is a Barrier which they do not transgress:

There is a barrier between them. They encroach not (one upon the other).

He has made the two seas to flow freely -- they meet:

Between them is a barrier [so] neither of them transgresses.