Qur'an, Al-Inshiqaq, Surah 84:7-15
Each person will be given a book. Those who are given their books in their right hands, will be judged leniently; and they will return to their people joyfully. But those who are given their books in their left hands, will call down destruction on themselves, and burn in the fire of hell. They are the people who have never cared for their neighbours; they thought they would never return to God. Their Lord watches all that people do.