Language:
كتاب الأطعمة
70  
Food, Meals
(4)
Chapter: Eating from around the dish while taking meal with someone else.
(4)
باب مَنْ تَتَبَّعَ حَوَالَىِ الْقَصْعَةِ مَعَ صَاحِبِهِ، إِذَا لَمْ يَعْرِفْ مِنْهُ كَرَاهِيَةً
Sahih al-Bukhari 5379

Narrated Anas bin Malik:

A tailor invited Allah's Messenger (ﷺ) to a meal which he had prepared. I went along with Allah's Messenger (ﷺ) and saw him seeking to eat the pieces of gourd from the various sides of the dish. Since that day I have liked to eat gourd. `Umar bin Abi Salama said: The Prophet, said to me, "Eat with your right hand."

حَدَّثَنَا قُتَيْبَةُ، عَنْ مَالِكٍ، عَنْ إِسْحَاقَ بْنِ أَبِي طَلْحَةَ، أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ، يَقُولُ إِنَّ خَيَّاطًا دَعَا رَسُولَ اللَّهِ صلى الله عليه وسلم لِطَعَامٍ صَنَعَهُ ـ قَالَ أَنَسٌ ـ فَذَهَبْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَرَأَيْتُهُ يَتَتَبَّعُ الدُّبَّاءَ مِنْ حَوَالَىِ الْقَصْعَةِ ـ قَالَ ـ فَلَمْ أَزَلْ أُحِبُّ الدُّبَّاءَ مِنْ يَوْمِئِذٍ‏.‏
Reference : Sahih al-Bukhari 5379
In-book reference : Book 70, Hadith 7
USC-MSA web (English) reference : Vol. 7, Book 65, Hadith 291
  (deprecated numbering scheme)