question #1 Sahih Muslim 237b, Book 2, Hadith 28 : What is the significance of cleaning the nostrils during ablution in Islamic practice?

This is what Abu Huraira transmitted to us from Muhammad, the Messenger of Allah (ﷺ), and he mentioned a number of a hadith, of which this is one: that the Messenger of Allah (ﷺ) said: When anyone amongst you (performs ablution) he must snuff his nostrils with water and then clean them.