رَبَّنَا لَا تَجْعَلْنَا فِتْنَةً لِّلَّذِينَ كَفَرُوا وَاغْفِرْ لَنَا رَبَّنَا إِنَّكَ أَنتَ الْعَزِيزُ الْحَكِيمُ
Translation 
"Our Lord! Make us not a trial for the disbelievers, and forgive us, Our Lord! Verily, You, only You are the All-Mighty, All-Wise."
Transliteration
rabbanaa laa taj‛alnaa fitnatan lil-ladheena kafaroo waghfir lanaa rabbanaa innaka ant-al-‛azeez-ul-ḥakeem
Sources:
Surah Al-Mumtaḥinah (60:5)
