وَيَقُولُونَ لَوْلَآ أُنزِلَ عَلَيْهِ ءَايَةٌ مِّن رَّبِّهِۦۖ فَقُلْ إِنَّمَا ٱلْغَيْبُ لِلَّهِ فَٱنتَظِرُوٓاْ إِنِّى مَعَكُم مِّنَ ٱلْمُنتَظِرِينَ ٢٠
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.