the Messenger of Allah was asked about mastigures when he was on the Minbar and he said? "I do not eat them, but I do not say that they are Haram."
Sunan an-Nasa'i Book 42, Hadith 52
← Previous Hadith "I caught two rabbits but I could not find anything with which to slaughter then, so I slaughtered them with a sharp-edged stone. I asked the Prophet about that and he commanded me to eat them"

Sunan an-Nasa'i Book 42, Hadith 51 Next Hadith → "O Messenger of Allah what do you think about mastigures?" He said: "I do not eat them but I do not say that they arte Haram."

Sunan an-Nasa'i Book 42, Hadith 53