The Prophet ﷺ drank some milk, then rinsed his mouth and said, "It has greasiness to it."
حدثنا يحيى عن الأوزاعي حدثنا الزهري عن عبيد الله بن عبد الله
أن النبي ﷺ شرب لبنا فمضمض وقال إن له دسما
Its isnad is sahih. Ubaydullah is Ibn Abdullah bin Utbah. In H it appears as Abdullah bin Ubaydullah, which is an error, and we have corrected it from K. Abu Dawud narrated the hadith in 1:76 through the route of Aqeel from Zuhri. Munziri said, Bukhari, Muslim, Tirmidhi, Nasai, and Ibn Majah also reported it.