From Sahih Bukhari (Hadith 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
Reference: Bukhari 5379