He also reported God’s messenger as saying, “The devil comes to one of you saying, ‘Who created this? Who created that?’ even saying, ‘Who created your Lord?’ "When he gets that length the man should seek refuge in God and stop thinking about it.” (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الإيمان / 65
Hadith Gradingالألبانی:متفق عليه | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (3276) واللفظ له، و مسلم (134/ 214)»