﴿ مَّن يُصْرَفْ عَنْهُ يَوْمَئِذٍۢ فَقَدْ رَحِمَهُۥ ۚ وَذَٰلِكَ ٱلْفَوْزُ ٱلْمُبِينُ ﴾

“Upon him who shall be spared on that Day, He will indeed have bestowed His grace: and this will be a manifest triumph.”

He from whom it is averted read passive yusraf ‘it is averted’ namely ‘the chastisement’; or read active yasrif ‘He averts’ namely ‘God’ as the subject; the referential noun has been omitted on that day He the Exalted One will have had mercy on him He will have desired good for him; that is the manifest triumph evident salvation.