Bulugh al-Maram, Book 1, Hadith 57 (English)

Narrated Talha bin Musarrif, quoting his father on the authority of his grandfather: “I saw Allah’s Messenger 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 ٍ (67)‏.‏ ‏1 ‏- ضعيف.‏ رواه أبو داود (139)‏.‏

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also referenced under: Book 1, Hadith 61 (In-Book)