a severe punishment" in the Hereafter, after the punishment of the worldly life.
"Allah has sent down to you a Dhikr (reminder)": that is, Allah has sent down to you a reminder through the Messenger who has come to you.
٤٠٥ - @ عَذَابًا شَدِيدًا﴾ فِي الْآخِرَة بعد عَذَاب الدُّنْيَا.
﴿قَدْ أَنزَلَ اللَّهُ إِلَيْكُمْ ذِكْرًا﴾ أَي: قد أنزل اللَّه إِلَيْكُم ذكرا بالرسول الَّذِي جَاءَكُم