Sahih al-Bukhari 5400
صحيح البخاري#5400SahihNarrated Khalid bin Al-Walid:"A roasted mastigure was brought to the Prophet (ﷺ) who stretched his hand towards it to eat it. But it was said to him, "It is a mastigure." So he withdrew his hand. Khalid asked, "Is it unlawful to eat?" the Prophet said, "No, but it is not found in the land of my people and that is why I do not like eating it." So Khalid started eating (it) while Allah's Messenger (ﷺ) was looking at him. An-Nadr said: 'Al-Khazira' (is prepared) from bran while 'Al-Harira' is prepared from milk
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 70:28