Sahih al-Bukhari, Volume 9, Book 92, Hadith 457 (USC-MSA) ⓘ

Narrated Ibn `Abbas: Um Hufaid bint Al-Harith bin Hazn presented the Prophet with some butter, dried yoghurt (curd milk) and mastigures as a gift. The Prophet then asked for a meal (mastigures etc. to be put) and it was eaten over his table cloth, but the Prophet did not eat of it, as he had aversion to it. But if it had been illegal to eat, it would not have been eaten over his table cloth nor would he have ordered that (mastigures meat) to be eaten.

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ أَبِي بِشْرٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ أُمَّ حُفَيْدٍ بِنْتَ الْحَارِثِ بْنِ حَزْنٍ، أَهْدَتْ إِلَى النَّبِيِّ صلى الله عليه وسلم سَمْنًا وَأَقِطًا وَأَضُبًّا، فَدَعَا بِهِنَّ النَّبِيُّ صلى الله عليه وسلم فَأُكِلْنَ عَلَى مَائِدَتِهِ، فَتَرَكَهُنَّ النَّبِيُّ صلى الله عليه وسلم كَالْمُتَقَذِّرِ لَهُ، وَلَوْ كُنَّ حَرَامًا مَا أُكِلْنَ عَلَى مَائِدَتِهِ، وَلاَ أَمَرَ بِأَكْلِهِنَّ‏.‏