مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3273
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Abu Ghatafan said: I entered upon Ibn ‘Abbas (رضي الله عنه) and I found him doing wudoo’, he rinsed his mouth and nose, then he said: The Messenger of Allah (ﷺ) said: "Rinse your nose thoroughly two or three times.”
Musnad Ahmad 3296Its isnad is qawi]