Riyad as-Saliheen 884
Abu Sa'id Al-Khudri (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ said, "When one yawns, he should put his hand over his mouth, otherwise the devil will enter."
[Muslim].
وعن أبي سعيد الخدري رضي الله عنه قال: قال رسول الله ﷺ :
"إذا تثاءب أحدكم فليمسك بيده علي فيه، فإن الشيطان يدخل" ((رواه مسلم)).
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 884
Riyad as-Saliheen Book of Greetings, Hadith 40