﴿ وَلَوْ تَرَىٰٓ إِذْ يَتَوَفَّى ٱلَّذِينَ كَفَرُوا۟ ۙ ٱلْمَلَٰٓئِكَةُ يَضْرِبُونَ وُجُوهَهُمْ وَأَدْبَٰرَهُمْ وَذُوقُوا۟ عَذَابَ ٱلْحَرِيقِ ﴾

“AND IF thou couldst but see [how it will be] when He causes those who are bent on denying the truth to die: the angels will strike their faces: and their backs, and [will say]: "Taste suffering through fire”

And if you could only see O Muhammad (s) when the angels take read either as yatawaffā or tatawaffā the disbelievers beating yadribūna is a circumstantial qualifier their faces and their backs with hooked iron rods and they say to them ‘Taste the chastisement of burning that is the Fire the response to the clause beginning with law ‘if’ would be la-ra’ayta amran ‘azīman ‘you would truly have seen an terrible sight’.