Feehimaa 'aynaani nad daakhataan

فِيهِمَا عَيْنَانِ نَضَّاخَتَانِ

Word By Word:

Feehimaa: In both of them

'aynaani: (are) two springs

nad daakhataan: gushing forth

Translation:

In them (each) will be two Springs pouring forth water in continuous abundance:

Ayah Tafseer:

In comparison with the Springs in the other two Gardens, described in 55:50 above, these Springs would seem to irrigate crops of vegetables and fruits requiring a constant supply of abundant water.

Source: Yusuf Ali Translations and Notes