Surat Al-Jāthiyah - سورة الجاثية

وَقَالُوا مَا هِيَ إِلَّا حَيَاتُنَا الدُّنْيَا نَمُوتُ وَنَحْيَا وَمَا يُهْلِكُنَا إِلَّا الدَّهْرُ ۚ وَمَا لَهُم بِذَٰلِكَ مِنْ عِلْمٍ ۖ إِنْ هُمْ إِلَّا يَظُنُّونَ

: And they say: "There is nothing but our life of this world, we die and we live and nothing destroys us except Ad-Dahr (the time). And they have no knowledge of it, they only conjecture.