Al-Mu'minun 23:118

وَقُل رَّبِّ ٱغْفِرْ وَٱرْحَمْ وَأَنتَ خَيْرُ ٱلرَّٰحِمِينَ

Waqul rabbi igh'fir wa-ir'ḥam wa-anta khayru l-rāḥimīna

And, [O Muḥammad], say, "My Lord, forgive and have mercy, and You are the best of the merciful."