Sahih MuslimBook 1: The Book of Faith (Kitab Al-Iman) › Chapter 61: PERTAINING TO EVIIL SUGGESTION OR PROMPTING IN FAITH AND WHAT SHOULD BE SAID WHEN IT OCCURS TO THE MIND OF A MAN
It is narrated on the authority of Abu Huraira that the Messenger of Allah (may peace be upon him) said: Men will continue to question one another till this is propounded: Allah created all things but who created Allah? He who found himself confronted with such a situation should say: I affirm my faith in Allah.
