عَنْ أَبِي رَافِعٍ عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ رَأَى نُخَامَةً فِي الْقِبْلَةِ قَالَ: يَقُولُ مَرَّةً: فَحَتَّهَا قَالَ: ثُمَّ قَالَ: قُمْتُ فَحَتَّيْتُهَا ثُمَّ قَالَ: ((أَيُحِبُّ أَحَدُكُمْ إِذَا كَانَ فِي صَلَاتِهِ أَنْ يُتَنَخَّعَ فِي وَجْهِهِ أَوْ يُبَزَّقَ فِي وَجْهِهِ؟ إِذَا كَانَ أَحَدُكُمْ فِي صَلَاتِهِ فَلَا يَبْزُقَنَّ بَيْنَ يَدَيْهِ وَلَا عَنْ يَمِينِهِ، وَلَٰكِنْ عَنْ يَسَارِهِ تَحْتَ قَدَمِهِ، فَإِنْ لَمْ يَجِدْ قَالَ بِثَوْبِهِ هَٰكَذَا))
Sayyiduna Abu Hurairah (may Allah be pleased with him) says: The Noble Prophet (peace and blessings be upon him) saw phlegm towards the direction of the Qiblah, so he (peace be upon him) scraped it off (according to one narration, Abu Hurairah says that I stood up and scraped it off). Then he (peace be upon him) said: Does any one of you like that when he is in prayer, phlegm or spit is thrown on his face? When any one of you is in prayer, he should never spit in front of him or to his right side, but rather he should spit to his left side under his foot. If he does not find (a place), then he should spit in his garment.