Surah Al-Baqarah (The Cow), Verse 103

وَلَوْ اَنَّهُمْ اٰمَنُوْا وَاتَّقَوْا لَمَثُوْبَةٌ مِّنْ عِنْدِ اللّٰهِ خَیْرٌ لَوْ كَانُوْا یَعْلَمُوْنَ 

Wa law annahum aamanoo wattaqaw lamasoobatum min 'indillaahi khairun law kaanoo ya'lamoon

“If they had kept their Faith and guarded themselves from evil, far better had been the reward from their Lord, if they but knew!”

Quran 2:103 (Yusuf Ali Translation)