Al-Mu'minun 23:69

أَمْ لَمْ يَعْرِفُوا۟ رَسُولَهُمْ فَهُمْ لَهُۥ مُنكِرُونَ

Am lam yaAArifoo rasoolahum fahum lahumunkiroon

Or did they not know their Messenger, so they are toward him disacknowledging?

Or did they not recognize their messenger and therefore they denied him?