Sunan Ibn Majah, Book 1, Hadith 540 (In-Book) ⓘ

It was narrated that Anas bin Malik said: "The Messenger of Allah milked a sheep and drank some of its milk, then he called for water and rinsed his mouth and said: 'It has some greasiness in it.'"

حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ السَّوَّاقُ، حَدَّثَنَا الضَّحَّاكُ بْنُ مَخْلَدٍ، حَدَّثَنَا زَمْعَةُ بْنُ صَالِحٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ حَلَبَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ شَاةً وَشَرِبَ مِنْ لَبَنِهَا ثُمَّ دَعَا بِمَاءٍ فَمَضْمَضَ فَاهُ وَقَالَ ‏ "‏ إِنَّ لَهُ دَسَمًا ‏" ‏ ‏.‏