رَبَّنَا لاَ تُزِغْ قُلُوبَنَا بَعْدَ إِذْ هَدَيْتَنَا وَهَبْ لَنَا مِن لَّدُنكَ رَحْمَةً إِنَّكَ أَنتَ الْوَهَّابُ
Translation 
"Our Lord! Let not our hearts deviate (from the truth) after You have guided us, and grant us mercy from You. Truly, You are the Bountiful Giver."
Transliteration
rabbanaa laa tuzigh quloobanaa ba‛da idh hadaytanaa wa hab lanaa min ladunka raḥmah, innaka ant-al-wahhaab
Sources:
Surah Aal-'Imran (3:8)
