Sunan An-Nasa'i

Ibn 'Abbas said:""Should I perform Wudu' after eating food that I see in the Book of Allah is permissible because fire has touched it?"" Abu Hurairah gathered some pebbles and said: ""I bear witness (as many times as) the number of these pebbles, that the Messenger of Allah (ﷺ) said: 'Perform Wudu' from that which has been touched by fire