Surah Al-Insan 76:20

وَإِذَا رَأَيْتَ ثَمَّ رَأَيْتَ نَعِيمًا وَمُلْكًا كَبِيرًا

And when you look there [in Paradise], you will see pleasure and great dominion.

Translation: Saheeh International

Tafsir

And when you look there that is to say when you begin to look about in Paradise you will see ra’ayta is the response to idhā ‘when’ bliss that is indescribable and a great kingdom vast without limit.

Excerpt from Tafsir al-Jalalayn, commentary on 76:20, via Quran.com. The reader has the full commentary and 9 more tafsirs.