Sunan Abi Dawud Book 28, Hadith 84
The Prophet (ﷺ) was brought a piece of cheese in Tabuk. He called for a knife, mentioned Allah's name and cut it.
The Prophet (ﷺ) said: I wish I had a white loaf made from tawny and softened with clarified butter and milk. A man from among the people got up and getting one brought it. He asked: In which had it been? He replied: In a lizard skin. He said: Take it away.
Abu Dawud said: This is a munkar (rejected) tradition.
Abu Dawud said: Ayyub, the narrator of this tradition, is not (Ayyub) al-Sakhtiyani.
What a good condiment vinegar is!