Sunan an-Nasa'i 4317

It was narrated from Ibn ' Abbas that:Khalid bin Al-Walid said that he entered upon Maimunah bint Al-Harith, who was his maternal aunt, with the Messenger of Allah, and some meat of a mastigure was offered to the Messenger of Allah The Messenger of Allah would not eat anything until he knew what it was. One of the women said: "Why don't you tell the Messenger of Allah what he is eating?" So she told him that it was the meat of a mastigure, and he stopped eating. Khalid said: "I asked the Messenger of Allah 'Is it Haram?' He said: "No but it is a food that is no