 never stay in that mosque. the mosque which was established for a pious purpose and before all other mosques is more virtuous for your prayer. in this mosque there are people who love to be purified. god loves those who purify themselves.
لا تقم فيه أبدا لمسجد أسس على التقوى من أول يوم أحق أن تقوم فيه فيه رجال يحبون أن يتطهروا والله يحب المطهرين