"By Allah, I do not know what I should do with these Karais (toilets). The Messenger of Allah (ﷺ) said: 'When any one of you goes to defecate or urinate, let him not face toward the Qiblah, nor turn his back towards it."
Sunan an-Nasa'i Book 1, Hadith 20
← Previous Hadith "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)."

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.

Sunan an-Nasa'i Book 1, Hadith 19 Next Hadith → "Do not face towards the Qiblah nor turn your backs toward it when defecating or urinating, rather face toward the east or the west."

Sunan an-Nasa'i Book 1, Hadith 21