﴿ كِلْتَا ٱلْجَنَّتَيْنِ ءَاتَتْ أُكُلَهَا وَلَمْ تَظْلِم مِّنْهُ شَيْـًۭٔا ۚ وَفَجَّرْنَا خِلَٰلَهُمَا نَهَرًۭا ﴾

“Each of the two gardens yielded its produce and never failed therein in any way, for We had caused a stream to gush forth in the midst of each of them.”

Please check ayah 18:36 for complete tafsir.