Surah Al Kahf Tafseer

كِلْتَا الْجَنَّتَيْنِ اتَتْ أُكُلَهَا

Each of those two gardens brought forth its produce,

meaning, produced its fruits,

وَلَمْ تَظْلِمْ مِنْهُ شَيْيًا

and failed not in the least therein,

meaning, nothing at all was diminishing.

وَفَجَّرْنَا خِلَلَهُمَا نَهَرًا

and We caused a river to gush forth in the midst of both.

means, rivers were flowing through them here and there