I have a question regarding the creation of the universe. The quran says that it was created in 7 days (to my knowlegde) but is this ayah literal, or metaphorical? And do we believe in the big bang theory or not? I'm just curious because iIsee ayahs talking about an inital expansion but I'm not sure if this is in reference to the big bang or not.

Bing bang is a theory neither accepted nor rejected till now. 7 days is a symbolic not actual as a day is calculated by the movement of sun and at that time sun was in the process of creation.