كَلَّآ إِنَّهُۥ تَذْكِرَةٌ
Compare 74:54 and 73:19
highlighted words differ between verses
إِنَّ هَـٰذِهِۦ تَذْكِرَةٌ ۖ فَمَن شَآءَ ٱتَّخَذَ إِلَىٰ رَبِّهِۦ سَبِيلًا
Both use 'fa man sha'a attakhadha ila rabbihi sabila' (let whoever wills take a path to his Lord) in near-verbatim form at the close of Al-Muzzammil and Al-Muddaththir.
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