Quran 10:20 Yunus, ayah 20 of 109

وَيَقُولُونَ لَوْلَآ أُنزِلَ عَلَيْهِ ءَايَةٌ مِّن رَّبِّهِۦ ۖ فَقُلْ إِنَّمَا ٱلْغَيْبُ لِلَّهِ فَٱنتَظِرُوٓا۟ إِنِّى مَعَكُم مِّنَ ٱلْمُنتَظِرِينَ ۝٢٠

10:20 And they will say: If only a portent were sent down upon him from his Lord! Then say, (O Muhammad): The Unseen belongeth to Allah. So wait! Lo! I am waiting with you.