It was narrated that Anas bin Malik said:

"The Messenger of Allah ﷺ saw some sputum in the Qiblah of the Masjid, and he became so angry that his face turned red. Then a woman from the Ansar went and scratched off, and put some perfume in its place. The Messenger of Allah ﷺ said: 'How good this is.'"

أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا عَائِذُ بْنُ حَبِيبٍ، قَالَ حَدَّثَنَا حُمَيْدٌ الطَّوِيلُ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ رَأَى رَسُولُ اللَّهِ ﷺ نُخَامَةً فِي قِبْلَةِ الْمَسْجِدِ فَغَضِبَ حَتَّى احْمَرَّ وَجْهُهُ فَقَامَتِ امْرَأَةٌ مِنَ الأَنْصَارِ فَحَكَّتْهَا وَجَعَلَتْ مَكَانَهَا خَلُوقًا فَقَالَ رَسُولُ اللَّهِ ﷺ " مَا أَحْسَنَ هَذَا " .