86:14
وَمَا هُوَ بِٱلْهَزْلِ ١٤
Saheeh International
And it is not amusement.
Tafsir of "Ibn Kathir" (English)
And it is not a thing for amusement.meaning, rather it is serious and true.Then Allah informs about the disbelievers saying that they reject Him and hinder others from His path. Allah says,إِنَّهُمْ يَكِيدُونَ كَيْدًا