Muhammad bin Sirin, may Allah have mercy on him, says that I was sitting with Hazrat Abu Hurairah, may Allah be pleased with him, when a man asked him something, but I do not know what he asked. Hazrat Abu Hurairah, may Allah be pleased with him, after hearing his question, said: "Allahu Akbar! Two people have already asked me about this before, now this is the third person. I heard the Noble Prophet, peace and blessings be upon him, say: 'Some people will become accustomed to asking questions so much that they will even begin to ask: If Allah created all of creation, then who created Allah?'"