Dalil

Quran Al-Baqarah 2:103

وَلَوۡ أَنَّهُمۡ ءَامَنُواْ وَٱتَّقَوۡاْ لَمَثُوبَةٞ مِّنۡ عِندِ ٱللَّهِ خَيۡرٞۚ لَّوۡ كَانُواْ يَعۡلَمُونَ

Translation

And if they had believed and feared Allāh, then the reward from Allāh would have been [far] better, if they only knew.