When one of you yawns, he should hold his hand over his mouth, for the devil enters.  

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا تَثَاءَبَ أَحَدُكُمْ فَلْيُمْسِكْ عَلَى فِيهِ فَإِنَّ الشَّيْطَانَ يَدْخُلُ  

“When anyone of you yawns, let him put his hand over his mouth and not make a sound, because Satan laughs at him.”  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا تَثَاءَبَ أَحَدُكُمْ فَلْيَضَعْ يَدَهُ عَلَى فِيهِ وَلاَ يَعْوِي فَإِنَّ الشَّيْطَانَ يَضْحَكُ مِنْهُ  

When one of you yawns, he should hold his hand over his mouth, for the devil enters. (Using translation from Abū Dāʾūd 5026)   

قَالَ رَسُولُ اللهِ ﷺ إِذَا تَثَاءَبَ أَحَدُكُمْ فَلْيَضَعْ يَدَهُ عَلَى فِيهِ فَإِنَّ الشَّيْطَانَ يَدْخُلُ مَعَ التَّثَاؤُبِ  

When one of you yawns, he should hold his hand over his mouth, for the devil enters. (Using translation from Abū Dāʾūd 5026)   

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا تَثَاءَبَ أَحَدُكُمْ فَلْيُمْسِكْ يَدَهُ عَلَى فِيهِ فَإِنَّ الشَّيْطَانَ يَدْخُلُ  

[Machine] The Prophet ﷺ said, "When one of you yawns during prayer, let him cover his mouth with his hand, as the devil enters along with yawning."  

قَالَ النَّبِيُّ ﷺ إِذَا تَثَاءَبَ أَحَدُكُمْ فِي الصَّلَاةِ فَلْيَضَعْ يَدَهُ عَلَى فِيهِ فَإِنَّ الشَّيْطَانَ يَدْخُلُ مَعَ التَّثَاؤُبِ  

When one of you yawns, he should hold his hand over his mouth, for the devil enters. (Using translation from Abū Dāʾūd 5026)   

قَالَ رَسُولُ اللَّهِ ﷺ «إِذَا تَثَاءَبَ أَحَدُكُمْ فَلْيَضَعْ يَدَهُ عَلَى فِيهِ فَإِنَّ الشَّيْطَانَ يَدْخُلُ»  

When one of you yawns, he should hold his hand over his mouth, for the devil enters. (Using translation from Abū Dāʾūd 5026)   

"إذا تثاءبَ أحدُكُم فلْيضعْ يدَه على فيهِ فإنَّ الشَّيطانَ يدْخلُ معَ التَّثاؤبِ ".  

“When anyone of you yawns, let him put his hand over his mouth and not make a sound, because Satan laughs at him.” (Using translation from Ibn Mājah 968)   

"إذا تثاءبَ أحدُكمُ فلْيضعْ يَدَهَ على فيه ولا يعْوى فإنّ الشَّيطانَ يضحكُ منه ".