It was narrated from Anas that the Prophet ( ﷺ took the hem of his garment and spat on it, rubbed it together briefly and let it drop. (Using translation from Nasāʾī 308)  

أَنَّ النَّبِيَّ ﷺ «أَخَذَ طَرَفَ رِدَائِهِ فَبَصَقَ فِيهِ فَرَدَّ بَعْضَهُ عَلَى بَعْضٍ»  

"When any one of you prays, let him not spit in front of him or to his right, rather let him spit to his left or beneath his feet." Then the Prophet ﷺ spat like this on his garment and rubbed it. (Using translation from Nasāʾī 309)  

عَنِ النَّبِيِّ ﷺ قَالَ «إِذَا صَلَّى أَحَدُكُمْ فَلَا يَبْصُقَنَّ بَيْنَ يَدَيْهِ وَلَا عَنْ يَمِينِهِ وَلَكِنْ عَنْ يَسَارِهِ أَوْ تَحْتَ قَدَمِهِ» وَإِلَّا فَبَصَقَ النَّبِيُّ ﷺ هَكَذَا فِي ثَوْبِهِ وَدَلَكَهُ