Quran Al-Baqarah 2:103
وَلَوۡ أَنَّهُمۡ ءَامَنُواْ وَٱتَّقَوۡاْ لَمَثُوبَةٞ مِّنۡ عِندِ ٱللَّهِ خَيۡرٞۚ لَّوۡ كَانُواْ يَعۡلَمُونَ ١٠٣
Translation
And if they had believed and feared Allāh, then the reward from Allāh would have been [far] better, if they only knew.