The Messenger of Allah ﷺ rinsed his mouth and inhaled water into his nose from a single handful.
حدثنا خلف بن الوليد قال حدثنا خالد يعني ابن عبد الله الواسطي الطحان عن عمرو بن يحيى عن أبيه
أن رسول الله ﷺ تمضمض واستنشق من كف واحد
No references are available.
Its isnad is sahih. It has already appeared at 16419, and it is found in Muslim with its wording at 1/210, no. 235, Abu Dawud at 1/30, no. 119, Tirmidhi at 1/41, no. 28, where he said, hasan gharib, Nasai at 1/68, no. 92, and Ibn Majah at 1/142, no. 405, all of them in the chapter on purification, from Abdullah bin Yazid, except Nasai, who has it from Ali bin Abu Talib.