'When you are praying, do not spit to the front or to your right. Spit behind you or to your left if there is no one there, otherwise do this.' And he spat beneath his foot and rubbed it.'" (Using translation from Nasāʾī 726)  

قَالَ رَسُولُ اللهِ ﷺ «إِذَا كُنْتَ تُصَلِّي فَلَا تَبْزُقْ بَيْنَ يَدَيْكَ وَلَا عَنْ يَمِينِكِ وَابْزُقْ خَلَّفَكَ أَوْ تِلْقَاءَ شِمَالِكَ إِنْ كَانَ فَارِغًا وَإِلَّا فَهَكَذَا» وَبَزَقَ تَحْتَ رِجْلِهِ وَدَلَكَهُ