صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب ما يكره للمصلي وما لا يكره - ذكر الأمر لمن تثاءب أن يضع يده على فيه عند ذلك حذر دخول الشيطان فيه
Chapter on What is Disliked and Not Disliked – Command to Cover the Mouth When Yawning to Prevent Satan’s Entry
1 hadith
Hadith 2360
Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: "When any person yawns, he should place his hand over his mouth because Satan enters inside."