(60) باب بَيَانِ الْوَسْوَسَةِ فِي الإِيمَانِ وَمَا يَقُولُهُ مَنْ وَجَدَهَا
Abu Huraira reported:
The Messenger of Allah (ﷺ) said to me: they (the people) till constantly ask you, Abu Huraira, (about different things pertaining to religion) the they would say: Well, there is Allah, but after all who created Allah? He (Abu Huraira) narrated: Once we were in the mosque that some of the Bedouins came there and said: Well, there is Allah, but who created Allah? He (the narrator) said: I took hold of the pebbles in my fist and flung at them and remarked: Stand up, stand up (go away) my friend (the Holy Prophet) told the truth.
Reference: Sahih Muslim 135 c
In-book reference: Book 1, Hadith 256
USC-MSA web (English) reference(deprecated numbering scheme): Book 1, Hadith 248