رَبِّ اغْفِرْ لِي وَلِأَخِي وَأَدْخِلْنَا فِي رَحْمَتِكَ ۖ وَأَنْتَ أَرْحَمُ الرَّاحِمِينَ

Rabbigh-fir lee wa li-akhee wa adkhilnaa fee rahmatika wa Anta Arhamur-Raahimeen.

My Lord, forgive me and my brother and admit us into Your mercy, for You are the most merciful of the merciful.

Reference: Surah Al-A'raf 7:151