Dalil
العربية

Quran Al-A'raf 7:184

أَوَلَمۡ يَتَفَكَّرُواْۗ مَا بِصَاحِبِهِم مِّن جِنَّةٍۚ إِنۡ هُوَ إِلَّا نَذِيرٞ مُّبِينٌ

Translation

Then do they not give thought? There is in their companion [i.e., Muḥammad (ﷺ)] no madness. He is not but a clear warner.