﴿ أَوَلَمْ يَتَفَكَّرُوا۟ ۗ مَا بِصَاحِبِهِم مِّن جِنَّةٍ ۚ إِنْ هُوَ إِلَّا نَذِيرٌۭ مُّبِينٌ ﴾

“Has it, then, never occurred to them that there is no madness whatever in [this] their fellowman? He is only a plain warner.”

Have they not considered and so realised that that there is no madness in their comrade Muhammad (s)? He is but a clear warner one whose warning is evident.