Arabic (Original)
حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ حَدَّثَنَا يُونُسُ عَنِ الزُّهْرِيِّ عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ عَنِ ابْنِ عَبَّاسٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تَمَضْمَضَ مِنْ لَبَنٍ وَقَالَ إِنَّ لَهُ دَسَمًا.
English Translation
Uthman ibn Umar told us: Yunus told us, from al-Zuhri, from Ubaydullah ibn Abdillah, from Ibn Abbas, that the Messenger of Allah, peace and blessings be upon him, rinsed his mouth after drinking milk and said: "It has fat in it."