JAMI AL-TIRMIDHI

To rinse mouth and snuff water up the nostril
(27)

Sayyidina  Salamah  ibn  Qays  (RA)  said  that  Allah's  Messenger(SAW)  said,"When   you
make ablution, snuff up water and when you use stone for istinja use an odd number."
 
[Ahmed19009, Bukhari 161, Nisai 43, Ibn e Majah 406]