Surah At-Takathur 102:7

ثُمَّ لَتَرَوُنَّهَا عَيْنَ ٱلْيَقِينِ

Then you will surely see it with the eye of certainty.

Translation: Saheeh International

Tafsir

Again you will surely see it — repeated for emphasis — with the eye of certainty ‘ayna is a verbal noun as both ra’ā and ‘āyana have the same meaning.

Excerpt from Tafsir al-Jalalayn, commentary on 102:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.