(11) باب صِفَةِ إِبْلِيسَ وَجُنُودِهِ
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Yawning is from Satan and if anyone of you yawns, he should check his yawning as much as possible, for if anyone of you (during the act of yawning) should say: 'Ha', Satan will laugh at him."
Reference: Sahih al-Bukhari 3289
In-book reference: Book 59, Hadith 98
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 54, Hadith 509