Bulugh al-Maram 52
Narrated Talha bin Musarrif, quoting his father on the authority of his grandfather:
“I saw Allah’s Messenger (ﷺ) rinsing his mouth and sniffing up and blowing his nose with separate scops of water.” [Reported by Abu Da’ud with a weak chain of narrators].
وَعَنْ طَلْحَةَ بْنِ مُصَرِّفٍ, عَنْ أَبِيهِ, عَنْ جَدِّهِ قَالَ: { رَأَيْتُ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-يَفْصِلُ بَيْنَ اَلْمَضْمَضَةِ وَالِاسْتِنْشَاقِ.‏ }  أَخْرَجَهُ أَبُو دَاوُدَ بِإِسْنَادِ ضَعِيف ٍ  1‏ .‏‏1 ‏- ضعيف.‏ رواه أبو داود (139)‏.‏