When is the dhikr for entering the lavatory recited? Is it upon entering or before? Is it still considered dhikr even though it is inside the lavatory? If restrooms did not exist during the time of the Messenger, where was the dhikr recited? Is it permissible to recite dhikr aloud in modern restrooms? Is the prohibition related to the place or to relieving oneself?

This supplication is legislated when intending to enter the toilet and is recited before entering it. It is not permissible to utter it inside, whether the place is designated for relieving oneself or in the desert, and whether it is clean or not, because the reason for the prohibition is to exonerate the name of Allah the Almighty from being mentioned in such a place.