Bulugh al-Maram, Book 1, Hadith 94 (English) ⓘ

Narrated Anas (rad): The Prophet on entering the lavatory used to say: [Allahumma inni a’udhu bika minal khubthi wal khaba’ithi] “O Allah, I seek refuge with You from devils – males and females (or all offensive and wicked things, evil deeds and evil spirits, etc.)” [Reported by As-Sab’a]

وَعَنْهُ قَالَ: { كَانَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-إِذَا دَخَلَ اَلْخَلَاءَ قَالَ: "اَللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ اَلْخُبُثِ وَالْخَبَائِثِ" } أَخْرَجَهُ اَلسَّبْعَة ُ (104)‏.‏ ‏3 ‏- صحيح.‏ رواه البخاري (142)‏، ومسلم (375)‏، وأبو داود (4)‏، والترمذي (5)‏، والنسائي (10)‏، وابن ماجه (296)‏، أحمد (3/99 و 101 و 282)‏.‏