وَٱلَّذِينَ كَسَبُوا۟ ٱلسَّيِّـَٔاتِ جَزَآءُ سَيِّئَةٍۭ بِمِثْلِهَا وَتَرْهَقُهُمْ ذِلَّةٌ ۖ مَّا لَهُم مِّنَ ٱللَّهِ مِنْ عَاصِمٍ ۖ كَأَنَّمَآ أُغْشِيَتْ وُجُوهُهُمْ قِطَعًا مِّنَ ٱلَّيْلِ مُظْلِمًا ۚ أُو۟لَـٰٓئِكَ أَصْحَـٰبُ ٱلنَّارِ ۖ هُمْ فِيهَا خَـٰلِدُونَ Qur’an Yunus (10:27)Waallatheena kasaboo alssayyiati jazao sayyiatin bimithliha watarhaquhum thillatun ma lahum mina Allahi min AAasimin kaannama oghshiyat wujoohuhum qitaAAan mina allayli muthliman olaika ashabu alnnari hum feeha khalidoona
In contrast with the multiple "rewards" for good deeds, the recompense of evil will be only commensurate with the deed itself. (See also note [46] on the last sentence of 41:50 .)
Lit., "by a piece of the night, densely dark".
Note that the evil reward is for those who have "earned" evil, i.e., brought it on themselves by the deliberate choice of evil. Further, in the justice of Allah, they will be requited with evil similar to, and not greater in quantity or intensity, than the evil they had done,-unlike the good, who, in Allah's generosity, get a reward far greater than anything they have earned or could possibly earn.
Night is the negation of Light and metaphorically of joy and felicity. The intensive is indicated by "the depth of the darkness of Night."