During the Ramadhaan I'tikaaf is it permissible to take a non-Waajib shower?

Answer

During I'tikaaf, only a compulsory bath is permissible. If a person leaves the Musjid for a shower which is not Waajib, his I'tikaaf is nullified. It is not permissible for the mu'takif (the one who observes I'tikaaf) to leave the Musjid to even renew wudhu if his wudhu is valid. He may not step out of the Musjid.