رَبَّنَا عَلَيْكَ تَوَكَّلْنَا وَإِلَيْكَ أَنَبْنَا وَإِلَيْكَ الْمَصِيرُ
Transliteration
Rabbana 'alayka tawakkalna wa ilayka anabna wa ilaykal-masir
English meaning
Our Lord, upon You we have relied, and to You we have turned, and to You is the destination.
When is it recited?
As an expression of trust in Allah.
Source
Al-Mumtahanah 60/4 — Abraham's supplication