اَللَّهُمَّ بِكَ أَمْسَيْنَا، وَبِكَ أَصْبَحْنَا، وَبِكَ نَحْيَا، وَبِكَ نَمُوتُ، وَإِلَيْكَ الْمَصِيرُ

Allaahumma bika 'amsaynaa, wa bika 'asbahnaa, wa bika nahyaa, wa bika namootu wa 'ilaykal-maseer.

O Allah, by You we enter the evening and by You we enter the morning, by You we live and and by You we die, and to You is our resurrection

Reference: Sahih (Albani). Abu Dawud: 5068