عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ شَرِبَ لَبَنًا فَمَضْمَضَ وَقَالَ إِنَّ لَهُ دَسَمًا
Sayyiduna Ibn Abbas (may Allah be pleased with them) narrates that the Noble Prophet (peace and blessings be upon him and his family) rinsed his mouth after drinking milk and said that it contains greasiness.