Ibn ‘Umar reported God's messenger as saying, “I wish I had a white loaf made from tawny wheat and softened with clarified butter and milk.” A man who was present rose up and getting one brought it. He asked what it had been in, and when he was told it had been in a lizard skin, he told him to take it away.
Abu Dawud and Ibn Majah transmitted it, Abu Dawud saying this is a tradition which is rejected.