52:28
إِنَّا كُنَّا مِن قَبْلُ نَدْعُوهُ ۖ إِنَّهُۥ هُوَ ٱلْبَرُّ ٱلرَّحِيمُ
innā kunnā min qablu nadʿūhu innahu huwa l-baru l-raḥīmu
We used to pray to Him: He is the Good, the Merciful One.’
"Verily, We used to invoke Him (Alone and none else) before. Verily, He is Al-Barr (the Most Subtle, Kind, Courteous, and Generous), the Most Merciful."