لِّلْكَافِرينَabout to befall (Waqi`) upon the disbelievers,means, it is waiting in preparation for the disbelievers.Ibn `Abbas said, "Waqi` means coming."لَيْسَ لَهُ دَافِعٌwhich non can avert,meaning, there is no one who can repel it if Allah wants it to happen. Thus, Allah says,مِّنَ اللَّهِ ذِي الْمَعَارِجِ