Verily your people would constantly question about this and that till they would say: Well, it is Allah Who created the creation, but who created Allah?  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ قَالَ اللَّهُ ﷻ إِنَّ أُمَّتَكَ لاَ يَزَالُونَ يَقُولُونَ مَا كَذَا مَا كَذَا حَتَّى يَقُولُوا هَذَا اللَّهُ خَلَقَ الْخَلْقَ فَمَنْ خَلَقَ اللَّهَ  

[Machine] The Messenger of Allah ﷺ said, "Indeed, Allah said to me that my nation will continue to question each other until they say, 'This is Allah who created the people, so who created Allah?'"  

قَالَ رَسُولُ اللهِ ﷺ إِنَّ اللهَ قَالَ لِي إِنَّ أُمَّتَكَ لَا يَزَالُونَ يَتَسَاءَلُونَ فِيمَا بَيْنَهُمْ حَتَّى يَقُولُوا هَذَا اللهُ خَلَقَ النَّاسَ فَمَنْ خَلَقَ اللهَ؟  

[Machine] The Messenger of Allah ﷺ said, "They will continue to seek guidance through consultation until one of them will say, 'This Allah created everything, so who created Allah?'"  

قَالَ رَسُولُ اللَّهِ ﷺ «لَا يَزَالُونَ يُسْتَفْتُونَ حَتَّى يَقُولَ أَحَدُهُمْ هَذَا اللَّهُ خَلَقَ الْخَلْقَ فَمَنْ خَلَقَ اللَّهَ؟! »