"Or do they not recognize their Messenger?" meaning: Muhammad, "and they are to him deniers?" Rather, they know his face and his lineage.
﴿أم لم يعرفوا رسولهم﴾ يَعْنِي: مُحَمَّدًا ﴿فَهُمْ لَهُ مُنْكِرُونَ﴾ بل يعْرفُونَ وَجهه وَنسبه