Ishaq is reported to have said on the authority of Aswad who quoted on the authority of 'Abdullah b. Mas'ud that the Messenger of Allah ﷺ used to recite these words as (fahal min muddakir).
عَنِ النَّبِيِّ ﷺ أَنَّهُ كَانَ يَقْرَأُ هَذَا الْحَرْفَ فَهَلْ مِنْ مُدَّكِرٍ