The Messenger of Allah (ﷺ) said: When any of you performs ablution, he should snuff up water in his nose and eject mucus.
Sunan Abi Dawud Book 1, Hadith 140
← Previous Hadith I entered upon the Prophet (ﷺ) while he was performing ablution, and the water was running down his face and beard to his chest. I saw him rinsing his mouth and snuffing up water separately.

Sunan Abi Dawud Book 1, Hadith 139 Next Hadith → The Messenger of Allah (ﷺ) said: Cleanse your nose well (after snuffing up water) twice or thrice.

Sunan Abi Dawud Book 1, Hadith 141