رَبَّنَا إِنَّكَ جَامِعُ النَّاسِ لِيَوْمٍ لَا رَيْبَ فِيهِ إِنَّ اللَّهَ لَا يُخْلِفُ الْمِيعَادَ
Transliteration
Rabbana innaka jami'un-nasi liyawmin la rayba fihi innallaha la yukhliful-mi'ad
English meaning
Our Lord, You will gather mankind on a Day about which there is no doubt. Indeed, Allah does not break His promise.
When is it recited?
In remembrance of the Hereafter.
Source
Al-i Imran 3/9