“It is impolite for a man to wipe his forehead a great deal before he finishes prayer.”  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِنَّ مِنَ الْجَفَاءِ أَنْ يُكْثِرَ الرَّجُلُ مَسْحَ جَبْهَتِهِ قَبْلَ الْفَرَاغِ مِنْ صَلاَتِهِ  

“Do not crack your fingers during the prayer.”  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ تُفَقِّعْ أَصَابِعَكَ وَأَنْتَ فِي الصَّلاَةِ  

“The Messenger of Allah ﷺ forbade a man to cover his mouth during the prayer.”  

نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يُغَطِّيَ الرَّجُلُ فَاهُ فِي الصَّلاَةِ  

It was narrated from Ka’b bin ‘Ujrah that the Messenger of Allah ﷺ saw a man who had interlocked his fingers during the prayer, so the Messenger of Allah ﷺ separated his fingers.  

أَنَّ رَسُولَ اللَّهِ ﷺ رَأَى رَجُلاً قَدْ شَبَّكَ أَصَابِعَهُ فِي الصَّلاَةِ فَفَرَّجَ رَسُولُ اللَّهِ ﷺ بَيْنَ أَصَابِعِهِ  

“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  

“Spitting, blowing one’s nose, menstruating and drowsiness during the prayer are from Satan.”  

عَنِ النَّبِيِّ ﷺ قَالَ الْبُزَاقُ وَالْمُخَاطُ وَالْحَيْضُ وَالنُّعَاسُ فِي الصَّلاَةِ مِنَ الشَّيْطَانِ