سورة المرسلات

Ali ibn Ibrahim (may Allah have mercy on him): إِنَّها تَرْمِی بِشَرَرٍ کَالْقَصْرِ [Surely it sends up sparks like palaces] — the sparks of the Fire are like palaces.

Ibn Abbas (may Allah have mercy on him): کَالْقَصْرِ [like palaces] means it is like it in its enormity and its fearsomeness. It spreads over the disbelievers from every direction — we seek refuge in Allah from it. And qasr is the singular of qusur, and it is from among structures.