[Machine] It was said to the Messenger of Allah ﷺ about wiping in the mosque, he said, "If you must do it, then do it only once." Hisham said, "I think he meant wiping over the footwear."  

أَنَّ رَسُولَ اللَّهِ ﷺ قِيلَ لَهُ فِي الْمَسْحِ فِي الْمَسْجِدِ قَالَ «إِنْ كُنْتَ لَا بُدَّ فَاعِلًا فَوَاحِدَةً» قَالَ هِشَامٌ أُرَاهُ قَالَ يَعْنِي مَسْحَ الْحَصَا  

“The Messenger of Allah ﷺ said: ‘When anyone of you gets up to perform prayer, then indeed mercy is facing him, so he should not smooth the pebbles.’” (Using translation from Ibn Mājah 1027)  

قَالَ رَسُولُ اللَّهِ ﷺ «إِذَا قَامَ أَحَدُكُمْ إِلَى الصَّلَاةِ فَإِنَّ الرَّحْمَةَ تُوَاجِهُهُ فَلَا يَمْسَحِ الْحَصَا»