Language:
كتاب الأطعمة
70  
Food, Meals
(8)
Chapter: Thin bread and eating at a dining table.
(8)
باب الْخُبْزِ الْمُرَقَّقِ وَالأَكْلِ عَلَى الْخِوَانِ وَالسُّفْرَةِ
Sahih al-Bukhari 5389

Narrated Ibn `Abbas:

that his aunt, Um Hufaid bint Al-Harith bin Hazn, presented to the Prophet (ﷺ) butter, dried yoghurt and mastigures. The Prophet (ﷺ) invited the people to those mastigures and they were eaten on his dining sheet, but the Prophet (ﷺ) did not eat of it, as if he disliked it. Nevertheless. if it was unlawful to eat that, the people would not have eaten it on the dining sheet of the Prophet (ﷺ) nor would he have ordered that they be eaten.

حَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ أَبِي بِشْرٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ أُمَّ حُفَيْدٍ بِنْتَ الْحَارِثِ بْنِ حَزْن ٍ ـ خَالَةَ ابْنِ عَبَّاسٍ ـ أَهْدَتْ إِلَى النَّبِيِّ صلى الله عليه وسلم سَمْنًا وَأَقِطًا وَأَضُبًّا، فَدَعَا بِهِنَّ فَأُكِلْنَ عَلَى مَائِدَتِهِ، وَتَرَكَهُنَّ النَّبِيُّ صلى الله عليه وسلم كَالْمُسْتَقْذِرِ لَهُنَّ، وَلَوْ كُنَّ حَرَامًا مَا أُكِلْنَ عَلَى مَائِدَةِ النَّبِيِّ صلى الله عليه وسلم وَلاَ أَمَرَ بِأَكْلِهِنَّ‏.‏
Reference : Sahih al-Bukhari 5389
In-book reference : Book 70, Hadith 17
USC-MSA web (English) reference : Vol. 7, Book 65, Hadith 301
  (deprecated numbering scheme)