His saying: "Cursed is man," meaning: he is damned; this is concerning the polytheist. "How disbelieving he is!" Al-Kalbi's interpretation is: How intense is his disbelief.
قَوْله: ﴿قتل الْإِنْسَان﴾ أَيْ: لُعِنَ؛ وَهَذَا لِلْمُشْرِكِ ﴿مَا أكفره﴾ تَفْسِيرُ الْكَلْبِيِّ: مَا أشدَّ كُفْرَهُ: