"The Messenger of Allah ﷺ entered Al-Khala' (the toilet) and said: 'Allahumma inni a'uthu bika min al-khubuthi wal-khaba'ith (O Allah, I seek refuge with You from male and female devils)."[1] [1] See Ma'alam As-Sunan by Al-Khattabi. And Al-Khala' is the area one relieves oneself in. It refers to outside or other than that, it should not be understood to mean toilet only. (Using translation from Nasāʾī 19)
أَنَّ رَسُولَ اللهِ ﷺ كَانَ إِذَا دَخَلَ الْخَلَاءَ قَالَ اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْخُبْثِ وَالْخَبَائِثِ