[Machine] While the Prophet ﷺ was delivering a sermon, he saw some spit in the direction of the mosque's Qibla (prayer direction). This annoyed him and he reprimanded the people of the mosque, saying that Allah will accept a person's prayer when they are in it, so they should not spit there or he said, "do not blow your nose." He then ordered for it to be wiped and it was wiped. Hammad said, "I do not know of it except that it was done with saffron."  

بَيْنَا النَّبِيُّ ﷺ يَخْطُبُ إِذْ رَأَى نُخَامَةً فِي قِبْلَةِ الْمَسْجِدِ فَتَغَيَّظَ عَلَى أَهْلِ الْمَسْجِدِ وَقَالَ إِنَّ اللَّهَ قِبَلَ أَحَدِكُمْ إِذَا كَانَ فِي صَلَاتِهِ فَلَا يَبْزُقَنَّ أَوْ قَالَ لَا يَتَنَخَّعَنَّ ثُمَّ أَمَرَ بِهَا فَحُكَّ مَكَانُهَا وَأَمَرَ بِهَا فَلُطِخَتْ قَالَ حَمَّادٌ وَلَا أَعْلَمُهُ إِلَّا قَالَ بِزَعْفَرَانٍ