From Sahih Bukhari (Hadith 5439):
Narrated Anas bin Malik:A tailor invited Allah's Messenger (ﷺ) to a meal which he had prepared. I went with Allah's Messenger (ﷺ) to that meal, and the tailor served the Prophet (ﷺ) with barley bread and soup of gourd and cured meat. I saw Allah's Messenger (ﷺ) picking the pieces of gourd from around the dish, and since then I have kept on liking gourd
Reference: Bukhari 5439