Sura 23 Al-Mu'minun (The Believers), ayah 69

1. أَمْ لَمْ يَعْرِفُوا رَسُولَهُمْ فَهُمْ لَهُ مُنْكِرُونَ

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

   23:69

Translation: Saheeh International